Siryn
Encyclopedia
Theresa Maeve Rourke Cassidy is a fictional comic book
Comic book
A comic book or comicbook is a magazine made up of comics, narrative artwork in the form of separate panels that represent individual scenes, often accompanied by dialog as well as including...

 superhero
Superhero
A superhero is a type of stock character, possessing "extraordinary or superhuman powers", dedicated to protecting the public. Since the debut of the prototypical superhero Superman in 1938, stories of superheroes — ranging from brief episodic adventures to continuing years-long sagas —...

 appearing in books published by Marvel Comics
Marvel Comics
Marvel Worldwide, Inc., commonly referred to as Marvel Comics and formerly Marvel Publishing, Inc. and Marvel Comics Group, is an American company that publishes comic books and related media...

, usually those belonging to the X-Men
X-Men
The X-Men are a superhero team in the . They were created by writer Stan Lee and artist Jack Kirby, and first appeared in The X-Men #1...

 family of titles. She previously employed the name Siryn but later goes by the name Banshee, in honor of her late father, Sean Cassidy, who first used the alias.

Like her father, the X-Men's Banshee
Banshee (comics)
Banshee is a fictional character, a Marvel Comics superhero who operates as a member of the X-Men. Created by writer Roy Thomas and artist Werner Roth, Banshee first appeared in X-Men #28 ....

, Siryn is an Irish
Ireland
Ireland is an island to the northwest of continental Europe. It is the third-largest island in Europe and the twentieth-largest island on Earth...

 mutant
Mutant (Marvel Comics)
In comic books published by Marvel Comics, a mutant is an organism who possesses a genetic trait called an X-gene that allows the mutant to naturally develop superhuman powers and abilities...

 who possesses a "sonic scream" capable of incapacitating and injuring an opponent's hearing and sending powerful vibrations through the air. She can use these vibrations to fly. Her name refers to the Siren
Siren
In Greek mythology, the Sirens were three dangerous mermaid like creatures, portrayed as seductresses who lured nearby sailors with their enchanting music and voices to shipwreck on the rocky coast of their island. Roman poets placed them on an island called Sirenum scopuli...

s of Greek mythology
Greek mythology
Greek mythology is the body of myths and legends belonging to the ancient Greeks, concerning their gods and heroes, the nature of the world, and the origins and significance of their own cult and ritual practices. They were a part of religion in ancient Greece...

.

Siryn was raised by Banshee’s cousin and arch-nemesis Black Tom Cassidy
Black Tom Cassidy
"Black Tom" Cassidy is a Marvel Comics supervillain, an enemy of the X-Men, and archenemy of Banshee. Created by writer Chris Claremont and artist Dave Cockrum, he first fully appeared in Uncanny X-Men #101...

 without Banshee's knowledge. By her early teens, she left Black Tom and joined the X-Men offshoots X-Force
X-Force
X-Force is a fictional Marvel Comics superhero team, one of several spin-offs of the popular X-Men franchise. Conceived by writer/illustrator Rob Liefeld, the team was formed in New Mutants, vol. 1 #100 and soon afterwards was featured in its own series.The group was a new incarnation of the 1980s...

 and later X-Factor
X-Factor Investigations
X-Factor Investigations is a fictional detective agency created by writer Peter David for the Marvel Comics comic book series X-Factor . The agency first appears under the name XXX Investigations in the first issue of the Marvel Comics limited series Madrox #1...

.

Publication history

Created by writer Chris Claremont
Chris Claremont
Chris Claremont is an award-winning American comic book writer and novelist, known for his 17-year stint on Uncanny X-Men, far longer than any other writer, during which he is credited with developing strong female characters, and with introducing complex literary themes into superhero...

 and artist Steve Leialoha
Steve Leialoha
Steve Leialoha is an American comic book artist whose work first came to prominence in the 1970s. He has worked primarily as an inker, though occasionally as a penciller, for several publishers, including Marvel Comics and later DC Comics.-Biography:Leialoha's professional career began in 1975...

, Siryn first appeared in Spider-Woman
Spider-Woman (Jessica Drew)
Spider-Woman is a fictional character, a superheroine in the Marvel Comics Universe. The character first appeared in Marvel Spotlight #32 , and 50 issues of an ongoing series titled Spider-Woman followed...

#37 (April 1981).

Early life

While Sean Cassidy was working on a deep undercover mission for Interpol
Interpol
Interpol, whose full name is the International Criminal Police Organization – INTERPOL, is an organization facilitating international police cooperation...

, his wife Maeve gave birth to their daughter, Theresa, at Cassidy Keep, County Mayo, Ireland. Not much later, Maeve died in an IRA
Irish Republican Army
The Irish Republican Army was an Irish republican revolutionary military organisation. It was descended from the Irish Volunteers, an organisation established on 25 November 1913 that staged the Easter Rising in April 1916...

 bombing. With no means to contact Sean, his cousin Tom
Black Tom Cassidy
"Black Tom" Cassidy is a Marvel Comics supervillain, an enemy of the X-Men, and archenemy of Banshee. Created by writer Chris Claremont and artist Dave Cockrum, he first fully appeared in Uncanny X-Men #101...

 took care of Theresa. When Sean returned to learn of his wife's death, he was devastated. Before Tom could even tell him of the existence of his daughter, Sean lashed out at Tom with his sonic scream for not having taken better care of Maeve. While Sean flew away in anger, Tom fell into a chasm, breaking his leg as a result of the attack which left him with a limp. Angrily, Tom swore to make Sean pay and vowed to never tell him about his daughter, raising her himself instead.

Tom (now known as Black Tom
Black Tom Cassidy
"Black Tom" Cassidy is a Marvel Comics supervillain, an enemy of the X-Men, and archenemy of Banshee. Created by writer Chris Claremont and artist Dave Cockrum, he first fully appeared in Uncanny X-Men #101...

) would raise Theresa as his apprentice in his criminal activities. While still a young teen, Theresa accompanied Black Tom and his then-partner, the Juggernaut
Juggernaut (comics)
The Juggernaut is a fictional character that appears in publications published by Marvel Comics. The character first appeared in X-Men #12 , and was created by writer Stan Lee and artist/co-plotter Jack Kirby....

, to San Francisco
San Francisco, California
San Francisco , officially the City and County of San Francisco, is the financial, cultural, and transportation center of the San Francisco Bay Area, a region of 7.15 million people which includes San Jose and Oakland...

, to assist him in his crimes. Here, employing the name Siryn, she aided them in a theft of vibranium
Vibranium
Vibranium is a fictional metal that appears in the Marvel Universe. It is most commonly known as one of the materials used to construct Captain America's shield, but it is also noted for its connection to the Black Panther and his native homeland of Wakanda .-Publication history:Vibranium first...

, and battled the original Spider-Woman
Spider-Woman (Jessica Drew)
Spider-Woman is a fictional character, a superheroine in the Marvel Comics Universe. The character first appeared in Marvel Spotlight #32 , and 50 issues of an ongoing series titled Spider-Woman followed...

 and several of the X-Men. This conflict ended in Black Tom's temporary capture. While in custody, Black Tom exonerated Theresa of responsibility for her crimes and wrote a letter to Sean explaining who she was. The X-Men brought Theresa back to their headquarters where she was joyfully reunited with her father.

Muir Island

Theresa soon moved to Muir Island
Muir Island
Muir Island is a small, fictional island off the northern coast of Scotland in the Marvel Comics universe. It plays a prominent role in the X-Men comics and its related series.-History:...

, home of the research laboratories of Dr. Moira MacTaggert
Moira MacTaggert
Dr. Moira Kinross MacTaggert is a fictional character appearing in X-Men stories in the Marvel Comics universe. She works as a geneticist and is an expert in mutant affairs. Olivia Williams played a minor role of Dr. Moira MacTaggert in X-Men: The Last Stand...

, a longtime ally of Professor X
Professor X
Professor Charles Francis Xavier, also known as Professor X, is a fictional character, a Marvel Comics superhero known as the leader and founder of the X-Men....

avier. During an overnight visit to Xavier Institute, Siryn, Kitty Pryde
Kitty Pryde
Katherine Anne "Kitty" Pryde is a fictional character that appears in comic books published by Marvel Comics. The character first appeared in Uncanny X-Men #129 and was created by writer-artist John Byrne....

, Illyana Rasputin, and a young Muir Island resident named Amp battled robotic duplicates of the Brotherhood of Evil Mutants after accidentally releasing them from the Danger Room
Danger Room
The Danger Room is a fictional training facility built for the X-Men of Marvel Comics as part of the various incarnations of the X-Mansion.-Early designs:...

. Later in the evening, Siryn engaged Kitty in a vicious fist fight after Amp convinced her that the young X-Man was trying to sabotage her chances with a young man named Dmitri. After the fight was broken up by Wolverine
Wolverine (comics)
Wolverine is a fictional character, a superhero that appears in comic books published by Marvel Comics. Born as James Howlett and commonly known as Logan, Wolverine is a mutant, possessing animal-keen senses, enhanced physical capabilities, three retracting bone claws on each hand and a healing...

, the girls reconciled and left on friendly terms. She also accompanied Wolverine and Kitty when they were asked by Professor Xavier to act as bodyguards for the mutant pop-star Dazzler
Dazzler
Dazzler is a Marvel Comics superheroine, associated with the X-Men. She first appeared in Uncanny X-Men #130 ....

. Dazzler was so impressed with Theresa's rendition of Amazing Grace
Amazing Grace
"Amazing Grace" is a Christian hymn with words written by the English poet and clergyman John Newton , published in 1779. With a message that forgiveness and redemption are possible regardless of the sins people commit and that the soul can be delivered from despair through the mercy of God,...

, that she asked the young mutant to act as a backing vocalist
Backing vocalist
A backing vocalist or backing singer is a singer who provides vocal harmony with the lead vocalist or other backing vocalists...

 for her concert.

While living back on the island, Siryn started a romantic relationship with the mutant known as Jamie Madrox
Jamie Madrox
James Arthur "Jamie" Madrox, also called the Multiple Man, is a fictional character, a Marvel Comics superhero, associated with the X-Men...

. This version of Multiple Man turned out to be one of his many duplicates and not the original Multiple Man, leading to the end of the relationship. During this time Siryn and Multiple Man traveled to New York City
New York City
New York is the most populous city in the United States and the center of the New York Metropolitan Area, one of the most populous metropolitan areas in the world. New York exerts a significant impact upon global commerce, finance, media, art, fashion, research, technology, education, and...

. She and Madrox began a search to help the New Mutants
New Mutants
The New Mutants are a group of teenaged mutant superheroes-in-training published by Marvel Comics. They have been the main characters of three successive comic book series, which were spin-offs of the popular X-Men franchise....

 find two of their members, Sunspot
Sunspot (comics)
Sunspot is a fictional character, a Marvel Comics superhero most commonly associated with X-Men-related groups the New Mutants and X-Force....

 and Warlock
Warlock (New Mutants)
Warlock is a fictional character, a cybernetic alien superhero published by Marvel Comics. He first appeared in New Mutants vol. 1 #18 , and was created by Chris Claremont and Bill Sienkiewicz.-Publication history:...

, who had run away from the school. In the course of this adventure, Siryn and Multiple Man found Sunspot and met the association of street-level mutants known as the Fallen Angels
Fallen Angels (comics)
Fallen Angels is a team of fictional comic book superhuman teenagers in the Marvel Comics universe. The team's only appearances were in the Fallen Angels eight-issue limited series, written by Jo Duffy, which ran from April 1987 to November 1987....

. They were transported, with the Fallen Angels, to Devil Dinosaur
Devil Dinosaur
Devil Dinosaur is a Marvel Comics character who resembles a red Tyrannosaurus rex. He first appeared in Devil Dinosaur #1...

's planet. They then traveled to the "Coconut Grove", the home planet of the alien Ariel
Ariel (comics)
Ariel is a fictional character, an extraterrestrial mutant in the Marvel Comics Universe. Her first appearance was in Fallen Angels #1...

. While there, her superhuman powers were neutralized, and she was made a captive by Unipar of the "Coconut Grove" planet. She regained her superhuman powers and freedom, and returned to Earth. She decided to remain in the Fallen Angels for a time to help reform their criminal members.

Later, back on Muir Island, she fell under the mental control of the Shadow King
Shadow King
The Shadow King, also known as Amahl Farouk, is a fictional character that appears in comic books published by Marvel Comics. The Shadow King exists as an entity of pure psychic energy that feeds on the hatred of humanity...

. Before long, she was freed from the Shadow King's control.

X-Force

Siryn becomes a core member of X-Force
X-Force
X-Force is a fictional Marvel Comics superhero team, one of several spin-offs of the popular X-Men franchise. Conceived by writer/illustrator Rob Liefeld, the team was formed in New Mutants, vol. 1 #100 and soon afterwards was featured in its own series.The group was a new incarnation of the 1980s...

, a paramilitary
Paramilitary
A paramilitary is a force whose function and organization are similar to those of a professional military, but which is not considered part of a state's formal armed forces....

 superhero team and for a time was its field leader. As a member of X-Force, her teammate Warpath
Warpath (comics)
James Proudstar, previously known as the second Thunderbird but also known as Warpath, is a fictional character, a Marvel Comics superhero associated with the X-Men....

 develops a romantic interest in her while Siryn begins an on-going flirtation with the mercenary Deadpool
Deadpool (comics)
Deadpool is a fictional character, a mercenary and anti-hero appearing in comic books published by Marvel Comics. Created by artist Rob Liefeld and writer Fabian Nicieza, Deadpool first appeared in The New Mutants #98 Deadpool (Wade Winston Wilson) is a fictional character, a mercenary and...

. Deadpool and Siryn initially became involved when the two met while fighting Black Tom Cassidy and the Juggernaut. Though Banshee warns Siryn that Deadpool was a madman and a murderer, she found herself quite taken with him, even looking past his horrific appearance. Due to this kindness, Deadpool becomes infatuated with Siryn and often sat outside her window as she slept in the X-Mansion. At first Siryn is unaware of this, but she is comforted in knowing that he is watching over her. Over time, Siryn became the voice of reason and sanity in Deadpool's ear, attempting to sway him to the side of good. She assists him in some of his missions, such as when Deadpool felt he needed some blood from the Hulk
Hulk (comics)
The Hulk is a fictional character, a superhero in the . Created by Stan Lee and Jack Kirby, the character first appeared in The Incredible Hulk #1 ....

 in order to cure problems with his own healing powers. In the end Siryn becomes overwhelmed with balancing her duties with X-Force and the demands of Deadpool's somewhat faulty sanity. She promises him that she would consider progressing their relationship if he continues on the path of good, and once she has her X-Force responsibilities secured. Warpath continues to seek Siryn's affections, and makes his dislike for Deadpool clear during a visit to the baseball diamond used in the movie, Field of Dreams
Field of Dreams
Field of Dreams is a 1989 American fantasy-drama film directed by Phil Alden Robinson and is from the novel Shoeless Joe by W. P. Kinsella...

.

Siryn confronts varied adversaries during her time in X-Force. She helps put down a coup in the other dimensional realm of Asgard. She confronts the forces of Onslaught
Onslaught (comics)
Onslaught is a fictional character that appears in comic books published by Marvel Comics. The character first appeared in X-Man #15 , and was co-created by writers Scott Lobdell, Mark Waid, and artist Andy Kubert....

 and the interdimensional media mogul known as Mojo
Mojo (comics)
Mojo is a Marvel Comics supervillain, primarily an enemy of the X-Men and one of its members, Longshot. Mojo is one of the "Spineless Ones," an alien race that is immobile without advanced technology. He is a slaver who rules the Mojoverse, a dimension where all beings are addicted to his...

. She even battles S.H.I.E.L.D.
S.H.I.E.L.D.
S.H.I.E.L.D. is a fictional espionage and a secret military law-enforcement agency in the Marvel Comics Universe. Created by Stan Lee and Jack Kirby in Strange Tales #135 , it often deals with superhuman threats....

 forces on more than one occasion. She also confronts more down to earth problems, particularly alcoholism
Alcoholism
Alcoholism is a broad term for problems with alcohol, and is generally used to mean compulsive and uncontrolled consumption of alcoholic beverages, usually to the detriment of the drinker's health, personal relationships, and social standing...

. Warpath helps her to cope with her drinking problems, and as of recent issues of X-Factor
X-Factor (comics)
X-Factor is an American comic book series published by Marvel Comics. It is a spin-off of the popular X-Men franchise, featuring characters from X-Men stories. The series has been relaunched several times with different team rosters, most recently as X-Factor Investigations.X-Factor launched in...

 she is leading a sober lifestyle.

She becomes a vital part of the team, as opined by an aspect of Charles Xavier
Professor X
Professor Charles Francis Xavier, also known as Professor X, is a fictional character, a Marvel Comics superhero known as the leader and founder of the X-Men....

, which saves the entire team from a near-death experience.

She leaves when Feral
Feral (comics)
Feral is a fictional character that appears in the Marvel Universe. She has been both a superhero and a supervillain and most recognizably associated as a member of X-Force.-Fictional character biography:...

, a former teammate turned villain, slashes her throat, destroying her vocal cords and rendering her temporarily mute
Speech disorder
Speech disorders or speech impediments are a type of communication disorders where 'normal' speech is disrupted. This can mean stuttering, lisps, etc. Someone who is unable to speak due to a speech disorder is considered mute.-Classification:...

 and powerless.

X-Corporation

Thanks to the aid of Deadpool, Siryn has since fully healed from her vocal cord injuries. Deadpool tracked down Wolverine
Wolverine (comics)
Wolverine is a fictional character, a superhero that appears in comic books published by Marvel Comics. Born as James Howlett and commonly known as Logan, Wolverine is a mutant, possessing animal-keen senses, enhanced physical capabilities, three retracting bone claws on each hand and a healing...

 and stole a sample of his blood to heal her.

Siryn joins the Paris
Paris
Paris is the capital and largest city in France, situated on the river Seine, in northern France, at the heart of the Île-de-France region...

 branch of the international mutant task force X-Corporation
X-Corporation
The X-Corporation is a fictional institution from the X-Men comic book series by Marvel Comics. This organization was created to ensure the protection of mutant rights throughout the world due to the increasing number of mutants....

, where she reunites with old friends such as Multiple Man, Rictor
Rictor
Rictor is a fictional comic book superhero in the Marvel Universe, who appears in the X-Men family of books published by Marvel Comics. He was created by writer Louise Simonson and artist Walt Simonson and first appeared in X-Factor vol.1 #17...

 and Cannonball
Cannonball (comics)
Cannonball is a fictional Marvel Comics superhero, associated with the X-Men. Created by writer Chris Claremont and artist Bob McLeod, Cannonball first appeared in Marvel Graphic Novel #4: The New Mutants ....

, and works for the first time with M
M (comics)
M is a fictional comic book superheroine, a mutant who appears in the X-Men family of books published by Marvel Comics...

. Their first mission does not go well and Siryn has to deal with the loss of another friend, Darkstar
Darkstar (comics)
Darkstar is a fictional character, a mutant superheroine in the Marvel Comics universe. She has been a member of various super-teams in her career, including X-Corporation and Champions of Los Angeles.-Fictional character biography:...

.

X-Factor Investigations

Siryn leaves X-Corp to become a member of X-Factor Investigations
X-Factor Investigations
X-Factor Investigations is a fictional detective agency created by writer Peter David for the Marvel Comics comic book series X-Factor . The agency first appears under the name XXX Investigations in the first issue of the Marvel Comics limited series Madrox #1...

. Siryn, as part of her initial duties for X-Factor Investigations, investigates the murder of a woman who died in a movie star's penthouse, on behalf of the victim's sister. A rival firm, Singularity Investigations, represented the actor with Damian Tryp
Damian Tryp
Damian Tryp is a fictional character in the Marvel Comics Universe. His first appearance was in X-Factor vol. 3 #2.-Fictional character biography:left|thumbnail|Ancient Tryp...

, Jr. as the defense counsel and to prove the star innocent. When Siryn and X-Factor Investigations manages to incriminate the star, and to thwart SI’s assassination attempt on Rictor
Rictor
Rictor is a fictional comic book superhero in the Marvel Universe, who appears in the X-Men family of books published by Marvel Comics. He was created by writer Louise Simonson and artist Walt Simonson and first appeared in X-Factor vol.1 #17...

, Tryp Junior is so infuriated that he ambushes Siryn and beats her, leaving her to die in an alley. She was later rescued by Rictor.

Siryn was in a state of denial
Denial
Denial is a defense mechanism postulated by Sigmund Freud, in which a person is faced with a fact that is too uncomfortable to accept and rejects it instead, insisting that it is not true despite what may be overwhelming evidence.The subject may use:* simple denial: deny the reality of the...

 regarding her father's death
X-Men: Deadly Genesis
X-Men: Deadly Genesis is a comic book limited series published by Marvel Comics in late 2005 and early 2006. The series was written by Ed Brubaker with interior art by Trevor Hairsine and covers by Marc Silvestri. Starring the X-Men, this series celebrates the 30th anniversary of Giant-Size X-Men #1...

, holding to the fact that many X-Men have been believed dead only to later return alive
Comic book death
In the comic book fan community, the apparent death and subsequent return of a long-running character is often called a comic book death. While death is a serious subject, a comic book death is generally not taken seriously and is rarely permanent or meaningful...

.

Due to a love triangle with fellow teammates Multiple Man and Monet St. Croix
M (comics)
M is a fictional comic book superheroine, a mutant who appears in the X-Men family of books published by Marvel Comics...

, Siryn's relationships with the X-Factor members are strained. During a night of drinking on Jamie Madrox's part, Siryn ends up sleeping with Madrox, and St. Croix with his duplicate. Both women are unaware that this had occurred, and are both hopeful of continuing a romantic relationship with him. Upon reabsorbing his dupe, Madrox is reluctant to tell the ladies, fearing for his life. Siryn resolves her differences with both Madrox and St. Croix, and the two women develop a budding friendship and partnership on later missions.

Theresa and Monet are sent to retrieve two famous child singers (who specialize in mutant hate songs) from their parents, thanks to a court order from their grandparents. The two end up being ambushed, knocked out, and kidnapped by the children's mutant bodyguards, Solo
Solo (Marvel Comics)
Solo is a fictional character, appearing in comic books by Marvel Comics.-Publication history:Solo first appeared in Web of Spider-Man #19 . He was created by writer David Michelinie and artist Marc Silvestri...

 and Clay. They awake imprisoned, (Theresa is tied up with her mouth covered by duct tape to prevent her from using her powers), but they both escape and return the children to their grandparents. It is revealed that the entire mission was a ruse by Josef Huber
Isolationist (comics)
The Isolationist is a fictional character in the Marvel Comics Universe, created by Peter David and Pablo Raimondi. The character's first appearance was in X-Factor vol. 1, #89 on a single page, but his story wasn't continued until X-Factor vol...

 to lure the women away from their X-Factor teammates. Both Monet and Siryn's mental-based powers negatively affect Huber's mind-control abilities.

"World War Hulk"

Siryn answers the Stepford Cuckoos
Stepford Cuckoos
The Stepford Cuckoos are a set of fictional mutant psychically linked quintuplets . They are students at the Xavier Institute for Higher Learning and appear in comic books published by Marvel Comics...

' call for help when the Hulk
Hulk (comics)
The Hulk is a fictional character, a superhero in the . Created by Stan Lee and Jack Kirby, the character first appeared in The Incredible Hulk #1 ....

 assaults the X-Mansion
X-Mansion
In the fictional Marvel Comics universe, the X-Mansion is the common name for Professor Xavier's mansion. It is the base of operations and training site of the X-Men and the location of a school for mutant teenagers, the Xavier Institute for Higher Learning, formerly Xavier's School for Gifted...

 in "World War Hulk
World War Hulk
"World War Hulk" is a comic book crossover storyline that ran through a self titled limited series and various other titles published by Marvel Comics in 2007, featuring the Hulk....

".

Messiah Complex

Theresa assists Rictor's infiltration of the Purifiers
Purifiers
The Purifiers, also known as the Stryker Crusade, are a fictional paramilitary/terrorist organization in the Marvel Comics universe and enemies of the X-Men...

, and accompanies M and Strong Guy
Strong Guy
Strong Guy is the alias of Guido Carosella, a fictional character in the Marvel Comics universe. He was created by Chris Claremont and Bill Sienkiewicz in New Mutants volume 1 #29 , and was reinvented as Strong Guy by Peter David and Larry Stroman in X-Factor #71 .-Early life:Born in Rhinebeck,...

, along with the rest of the X-Men, to rescue the mutant baby and X-Force. She later receives a call from the mutant Peepers
Peepers
Peepers is a fictional character in comic books published by Marvel Comics. He first appeared as a member of the Brotherhood of Evil Mutants, a group of mutants in Captain America Annual #4. He was created by Jack Kirby.-Fictional character biography:...

, who is being pursued by Predator X, but Theresa arrives too late to help him and finds what is left of his corpse. Siryn prays at the comatose Jamie's bedside when he awakes, and takes part in the X-Men's assault on the Marauders
Marauders (comics)
The Marauders is a team of fictional supervillain characters in comic books published by Marvel Comics. Created by writer Chris Claremont and artist John Romita, Jr., the team first appear in Uncanny X-Men #210 The Marauders is a team of fictional supervillain characters in comic books published by...

' base with Monet and Guido, taking on Exodus
Exodus (comics)
Exodus is a fictional character, a comic book supervillain in the Marvel Comics universe. Created by writer Scott Lobdell and artist Joe Quesada, he first appeared in X-Factor #92...

 in the battle.

Divided We Stand

Siryn reveals that she is pregnant with Jamie's child, and after talking with Monet she reveals she intends on keeping it. She has not yet told Jamie but when she tries, he mistakenly believes that she wants to quit X-Factor. Monet later makes Siryn realize that she still loves Jamie. Theresa then tries to tell Jamie again but Arcade
Arcade (comics)
Arcade is a fictional character, a supervillain in the Marvel Comics Universe created by Chris Claremont and John Byrne. Arcade first appeared in Marvel Team-Up, vol...

 makes his presence known in Mutant Town so X-Factor split up to deal with him and help the residents.

Sean

In X-Factor #10, Jamie Madrox
Jamie Madrox
James Arthur "Jamie" Madrox, also called the Multiple Man, is a fictional character, a Marvel Comics superhero, associated with the X-Men...

 awakens to learn that he and one of his duplicates slept with Theresa and Monet. Although he is initially uncertain as to which was which, he comes to conclude with near certainty that it was he that slept with Theresa, and the dupe that slept with Monet, though this does little to assuage Theresa and Monet's anger. Theresa later discovers that she is pregnant, and Jamie eventually learns about this. In X-Factor #39, Theresa goes into labor. In the midst of it, she proposes to Jamie, who accepts. She gives birth to a boy, and they name him Sean, after her father, whose death she finally accepts. Just hours after his birth, baby Sean is absorbed into Jamie's body as Jamie holds him, completely against Jamie's will, to the horror of Jamie, Theresa and X-Factor. Jamie later says that Sean was an "infant dupe", and absorbed into him as a duplicate would, but a grieving Theresa is only filled with rage toward Jamie.

Assuming leadership and departure

After the pregnancy, Madrox leaves the team and Terry takes charge, though she sinks into sadness because of the recent events. Following Madrox's return to present time, he offers to leave the team headquarters in Detroit and restart a branch with Guido in New York. She disbands the Detroit team, bringing most of the members to return the New York branch. She runs into Madrox's reverend dupe who helps her cope with her depression and has a one-night stand with her former boyfriend Deadpool. After coming to terms with his death and reconciling her grief, Siryn has taken her deceased father's codename as her own and begins calling herself Banshee in honor of his memory.
During the events of X-Men: Second Coming
X-Men: Second Coming
"Second Coming" is a crossover storyline published by Marvel Comics that ran through the most of the X-Men comic books from March to July 2010.-Publication history:...

, it is revealed that agents of the Mutant Response Division are preparing to target Siryn for assassination.

Powers and abilities

Siryn is a mutant
Mutant (Marvel Comics)
In comic books published by Marvel Comics, a mutant is an organism who possesses a genetic trait called an X-gene that allows the mutant to naturally develop superhuman powers and abilities...

 who possesses sonic powers similar to those of her father, Banshee
Banshee (comics)
Banshee is a fictional character, a Marvel Comics superhero who operates as a member of the X-Men. Created by writer Roy Thomas and artist Werner Roth, Banshee first appeared in X-Men #28 ....

, although she is able to use her powers in ways that Banshee apparently cannot. Like her father, she has the ability to emit high-decibel "sonic screams" to create various sonic effects with her vocal cords. She can also vary the pitch to deflect projectile
Projectile
A projectile is any object projected into space by the exertion of a force. Although a thrown baseball is technically a projectile too, the term more commonly refers to a weapon....

s, and she even used it to deflect lasers once. She possesses an enhanced sense of hearing and can use her voice for echolocation to detect objects. While screaming, Siryn is able to fly at the speed of sound. Siryn has especially potent sonic attacks. She can shatter objects; project concussive blasts of sonic force (a "sonic lance"); or cause immediate pain, nausea/vomiting, and unconsciousness. She has shown a degree of resistance to what would be harmful and painful sounds and vibrations to normal humans or mutants without sonic-based powers. She also possesses psionic powers to create a force field that protects her against her own sonic vibrations to assist her ability to fly, and to help direct her sonic powers.

She is vulnerable to losing the ability to use her power effectively by overstraining and overusing her sonic screams or injury to her throat and vocal chords
Vocal folds
The vocal folds, also known commonly as vocal cords, are composed of twin infoldings of mucous membrane stretched horizontally across the larynx...

. She also lacks fine control of her abilities when in extreme distress: screaming in pain during her pregnancy, she unwillingly shattered every window in the complex, causing the medical staff to writhe in agony.

Unlike her father, Siryn is able to influence and control other human beings with her sonics, as well as cause them to enter a hypnotic
Hypnosis
Hypnosis is "a trance state characterized by extreme suggestibility, relaxation and heightened imagination."It is a mental state or imaginative role-enactment . It is usually induced by a procedure known as a hypnotic induction, which is commonly composed of a long series of preliminary...

 state. Siryn can also cause the intended person to fall in love with her without regard to gender or sexual orientation and carry out her wishes and commands, like mythical Siren
Siren
In Greek mythology, the Sirens were three dangerous mermaid like creatures, portrayed as seductresses who lured nearby sailors with their enchanting music and voices to shipwreck on the rocky coast of their island. Roman poets placed them on an island called Sirenum scopuli...

s. Siryn once utilized this ability on Spider-Man
Spider-Man
Spider-Man is a fictional Marvel Comics superhero. The character was created by writer-editor Stan Lee and writer-artist Steve Ditko. He first appeared in Amazing Fantasy #15...

, forcing him to divulge the truth about the Decimation
Decimation (comics)
Decimation is the late 2005 Marvel Comics storyline spinning off from the House of M limited series. It focuses on the ramifications of the Scarlet Witch stripping nearly all of the mutant population of their powers, thereby reducing a society of millions to one of scant hundreds.This event, which...

 of the mutants.

In addition, she can also prevent others from hearing external sounds by a certain vocal pitch so that she can secretly deliver messages to them.

Other versions

Theresa appears in the series X-Man during the 1995 - 1996 "Age of Apocalypse
Age of Apocalypse
"Age of Apocalypse" is a 1995 - 1996 comic book crossover storyline published in the X-Men franchise of books by Marvel Comics. The Age of Apocalypse briefly replaced the universe of Earth-616, although it was later retconned as having occurred in the alternate universe of Earth-295, it had...

" storyline, in which she is known as Sonique. She is a companion to Nate Grey
Nate Grey
Nathaniel "Nate" Grey is a fictional comic book superhero appearing in books published by Marvel Comics, in particular those related to the X-Men franchise...

, and fights along him and Sauron
Sauron (comics)
Sauron is a comic book character, a supervillain in Marvel Comics' main shared universe. An enemy of the X-Men, the character was created by writer Roy Thomas and artist Neal Adams. He first fully appeared as Sauron in X-Men #60 ....

 against Mr. Sinister. After being brainwashed by Jean Grey
Jean Grey
Jean Grey-Summers is a fictional comic book superheroine appearing in comic books published by Marvel Comics. She has been known under the aliases Marvel Girl, Phoenix, and Dark Phoenix and is best known as one of five original members of the X-Men, for her relationship with Cyclops, and for her...

, she was temporarily a member of the Sinister Six
Sinister Six
The Sinister Six are a group of supervillains in the Marvel Comics universe, drawn from Spider-Man's rogues gallery. The original incarnation of the group was organized by Doctor Octopus, and first appeared in The Amazing Spider-Man Annual #1 ....

, which aided Sinister in attacking the X-Men, before she was freed from Grey's influence by Psylocke
Psylocke
Psylocke is a fictional character depicted in comic books published by Marvel Comics, most notably those comics featuring the superhero team the X-Men. The character has also appeared in licensed adaptations. Created by writer Chris Claremont and artist Herb Trimpe, she first appeared in the UK...

.

Films

In the film X2: X-Men United
X2 (film)
X2 is a 2003 superhero film based on the fictional characters the X-Men. Directed by Bryan Singer, it is the second film in the X-Men film series...

, Siryn was played by Shauna Kain
Shauna Kain
Shauna Nicole Kain is an American-Canadian actress. She is probably best known for her role as Siryn in X2. She reprised that role for the third film, X-Men: The Last Stand. She can also be seen as a nauseated girl in a commercial for Roller Coaster Tycoon.-Filmography:-External links:...

 in a small cameo role. During William Stryker
William Stryker
Col. William "Bill" Stryker, M.D. is a fictional comic book supervillain in the Marvel Comics universe, and enemy of the X-Men. Created by writer Chris Claremont and artist Brent Anderson, he first appeared in the 1982 graphic novel X-Men: God Loves, Man Kills.Rev...

's attack on the mansion, her scream both alerts the rest of the school that they are under attack and incapacitates everyone in range. She was knocked out, but was rescued by Colossus
Colossus (comics)
Colossus is a fictional character, a superhero in the Marvel Comics universe. Created by writer Len Wein and illustrator Dave Cockrum, he first appeared in Giant-Size X-Men #1...

. Her name (along with her father's) also appears on a list of names Mystique
Mystique (comics)
Mystique is a fictional character associated with the Marvel Comics' franchise X-Men. Originally created by artist David Cockrum and writer Chris Claremont, she first appeared in Ms...

 scrolls through on Stryker's computer while looking for Magneto's file. In the Chris Claremont
Chris Claremont
Chris Claremont is an award-winning American comic book writer and novelist, known for his 17-year stint on Uncanny X-Men, far longer than any other writer, during which he is credited with developing strong female characters, and with introducing complex literary themes into superhero...

's novelization for the film, Siryn and a young Jamie Madrox
Jamie Madrox
James Arthur "Jamie" Madrox, also called the Multiple Man, is a fictional character, a Marvel Comics superhero, associated with the X-Men...

 are involved in a budding teen romance. Kain reprised the role in X-Men: The Last Stand
X-Men: The Last Stand
X-Men: The Last Stand is a 2006 superhero film and the third in the X-Men series. It was directed by Brett Ratner and stars an ensemble cast including Hugh Jackman, Halle Berry, Patrick Stewart, Ian McKellen, Famke Janssen, Kelsey Grammer, Anna Paquin, Shawn Ashmore, Aaron Stanford, Vinnie Jones,...

.

External links

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