The fourth season of the Australian drama Sea Patrol

Sea Patrol (TV series)

Sea Patrol is an Australian television drama, set on board HMAS Hammersley, a fictional patrol boat of the Royal Australian Navy . The series focuses on the ship and the lives of its crew members....

began airing on 15 April 2010. Most regular cast members have returned. The season began with a major reshuffle of senior crew members, including a new Commander

Commander

Commander is a naval rank which is also sometimes used as a military title depending on the individual customs of a given military service. Commander is also used as a rank or title in some organizations outside of the armed forces, particularly in police and law enforcement.-Commander as a naval...

 Maxine 'Knocker' White (Tammy McIntosh) replacing Steve Bisley

Steve Bisley

Steve Bisley is an Australian film and television actor, who attended the National Institute of Dramatic Art .-Acting career:...

 (Commander Marshall), Mike Flynn being promoted to Commander, Steve Coburn (Steve Bastoni

Steve Bastoni

Steve Bastoni is an Italian Australian actor. He is best known for his role in Police Rescue as Constable Yannis 'Angel' Angelopoulos and as Steve Parker in Neighbours.-Television:...

) becoming the new Lieutenant Commander

Lieutenant Commander

Lieutenant Commander is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander...

, and the departure of the Navigation Officer (Nav). Other non returning cast members included Jeremy Lindsay Taylor

Jeremy Lindsay Taylor

Jeremy Lindsay Taylor is an Australian actor. He finished his education at Newington College in 1991 and graduated with a Bachelor of Arts degree, with a major in drama and sociology, from the University of Newcastle...

 (Buffer), whose position has been filled by Conrad Coleby

Conrad Coleby

Conrad Julius Coleby is an Australian actor.-Biography:Coleby is the son of actor Robert Coleby and brother of actress Anja Coleby. He attended Somerset College on the Gold Coast, graduating in 1996. In the same year, he played the role of Colonel Juan Perón in the school's production of Evita...

 (Dutchy) and Jay Ryan (Spider), replaced by Danielle Horvat

Danielle Horvat

Danielle Horvat is an Australian actress, best known for her role in Neighbours as Taylah Jordan, and as Jessica Bird on Sea Patrol.-Television:...

 (Bird). Filming began in September 2009 and the number of episodes has been extended from the usual 13 to 16.

Main cast

Actor/actress	Character	Rank	Position
Ian Stenlake Ian Stenlake Ian Edward Stenlake is an Australian actor.-Television:Stenlake is perhaps best known for the role of Constable Oscar Stone which he played in the Australian police drama series Stingers from 1998 to 2002...	Mike "CO" Flynn Mike Flynn (TV character) Captain Michael "Mike" Flynn, CSC, RAN, is a fictional TV character on the show Sea Patrol, and is portrayed by Ian Stenlake. In the first episode of 'Sea Patrol' season 4 Mike is promoted to Commander and in season 5 is promoted to Captain and is transferred to NAVCOM.-History:Mike, also known as...  RAN Royal Australian Navy The Royal Australian Navy is the naval branch of the Australian Defence Force. Following the Federation of Australia in 1901, the ships and resources of the separate colonial navies were integrated into a national force: the Commonwealth Naval Forces...	Commander Commander Commander is a naval rank which is also sometimes used as a military title depending on the individual customs of a given military service. Commander is also used as a rank or title in some organizations outside of the armed forces, particularly in police and law enforcement.-Commander as a naval...	Commander
Lisa McCune Lisa McCune Lisa McCune , is a four-time Gold Logie Award winning Australian actress, best known for her role as Senior Constable Maggie Doyle in Blue Heelers, and as Lt...	Kate "XO" McGregor Kate McGregor (TV character) Lieutenant Kate McGregor is a fictional TV character from the show Sea Patrol. She is portrayed by Lisa McCune.-History:Lieutenant Kate McGregor, the Executive Officer of HMAS Hammersley, is cool, beautiful, reserved, always aiming for a perfect 10 in everything she does. She was nicknamed...  RAN Royal Australian Navy The Royal Australian Navy is the naval branch of the Australian Defence Force. Following the Federation of Australia in 1901, the ships and resources of the separate colonial navies were integrated into a national force: the Commonwealth Naval Forces...	Lieutenant Lieutenant A lieutenant is a junior commissioned officer in many nations' armed forces. Typically, the rank of lieutenant in naval usage, while still a junior officer rank, is senior to the army rank...	Executive Officer Executive officer An executive officer is generally a person responsible for running an organization, although the exact nature of the role varies depending on the organization.-Administrative law:...
John Batchelor John Batchelor (Australian actor) John David Batchelor is an Australian television and film actor. He is most known for portraying Chief Petty Officer Marine Technical / Chief Engineer Andy 'Charge' Thorpe on the Australian drama series Sea Patrol, and Peeto in the Australian feature film Red Dog.-Career:Beside portraing Andy...	Andy "Charge" Thorpe	Chief Petty Officer Chief Petty Officer A chief petty officer is a senior non-commissioned officer in many navies and coast guards.-Canada:"Chief Petty Officer" refers to two ranks in the Canadian Navy...	Chief Engineer Chief Engineer In marine transportation, the chief engineer is a licensed mariner in charge of the engineering department on a merchant vessel. "Chief engineer" is the official title of someone qualified to oversee the entire engine department; the qualification is colloquially called a "chief's...
Matthew Holmes Matt Holmes Matthew Theodore Holmes is an Australian actor.-Early life:Holmes attended Newington College . He gained an Advanced Diploma in Acting at the Actors College of Theatre and Television....	Chris "Swain" Blake Chris Blake (TV character) Petty Officer Christopher "Chris" Blake, CV was a fictional TV character on the show Sea Patrol. He was portrayed by Matthew Holmes.-Season one :...	Petty Officer Petty Officer A petty officer is a non-commissioned officer in many navies and is given the NATO rank denotion OR-6. They are equal in rank to sergeant, British Army and Royal Air Force. A Petty Officer is superior in rank to Leading Rate and subordinate to Chief Petty Officer, in the case of the British Armed...	Coxswain Coxswain The coxswain is the person in charge of a boat, particularly its navigation and steering. The etymology of the word gives us a literal meaning of "boat servant" since it comes from cox, a coxboat or other small vessel kept aboard a ship, and swain, which can be rendered as boy, in authority. ... /Chief Medic Medic Medic is a general term for a person involved in medicine, especially emergency or first-response medicine, such as an emergency medical technician, paramedic, or a military member trained in battlefield medicine. Also the term is used toward a Nurse in pre-hospital care and/or emergency...
Conrad Coleby Conrad Coleby Conrad Julius Coleby is an Australian actor.-Biography:Coleby is the son of actor Robert Coleby and brother of actress Anja Coleby. He attended Somerset College on the Gold Coast, graduating in 1996. In the same year, he played the role of Colonel Juan Perón in the school's production of Evita...	Dylan "Dutchy" Mulholland Dylan Mulholland (TV character) Petty Officer Dylan "Dutchy" Mulholland, MG is a fictional character in the Australia TV drama Sea Patrol. His character is a replacement for the character Pete "Buffer" Tomaszewski, whose last appearance was in the final episode of season three...	Petty Officer	Boatswain Buffer (navy) Buffer is the colloquial title for the senior seaman sailor in a Commonwealth of Nations Navy ship. The formal title is Chief Boatswain's Mate....
Kristian Schmid	Robert "RO" Dixon	Leading Seaman Leading Seaman Leading seaman is a junior non-commissioned rank or rate in navies, particularly those of the Commonwealth. When it is used by NATO nations, leading seaman has the rank code of OR-4. It is often equivalent to the army and air force rank of corporal and some navies use corporal rather than...	Radio Operator
Nikolai Nikolaeff Nikolai Nikolaeff Nikolai Nikolaeff is an Australian actor who is best known for his roles in the television series Sea Patrol, Power Rangers: Jungle Fury and Wicked Science....	Leo "2Dads" Kosov-Meyer Leo Kosov-Meyer (TV character) Leo Kosov-Meyer is a fictional television character portrayed by Nikolai Nikolaeff on the popular Australian T.V drama Sea Patrol.Leo, better known as "2Dads", is the crew's Electrical Technician, replacing the late Leading Seaman Joshua Holiday ....	Leading Seaman	Electronics Technician Electronics Technician Electronics Technician is a common enlisted occupation in many Militaries. Common duties for ETs include repair, calibration, and basic maintenance of most electronic equipment.-US Navy:...
Kirsty Lee Allan Kirsty Lee Allan Kirsty Lee Allan is an Australian actress and former fashion model. She is most known for portraying Able Seaman Rebecca 'Bomber' Brown in Sea Patrol.-Career:...	Rebecca "Bomber" Brown Rebecca Brown (TV character) Able Seaman Rebecca Brown is a fictional TV character on the show Sea Patrol. She is portrayed by Kirsty Lee Allan.- History :Rebecca is a young Navy sailor who became the new chef of the new Armidale-class HMAS Hammersley when the previous chef, Toby Jones left after the decommissioning of the...	Able Seaman Able seaman An able seaman is an unlicensed member of the deck department of a merchant ship. An AB may work as a watchstander, a day worker, or a combination of these roles.-Watchstander:...	Chef Chef A chef is a person who cooks professionally for other people. Although over time the term has come to describe any person who cooks for a living, traditionally it refers to a highly skilled professional who is proficient in all aspects of food preparation.-Etymology:The word "chef" is borrowed ... /Assistant Medic
Danielle Horvat Danielle Horvat Danielle Horvat is an Australian actress, best known for her role in Neighbours as Taylah Jordan, and as Jessica Bird on Sea Patrol.-Television:...	Jessica "Gap Girl" Bird	Seaman Seaman Seaman is one of the lowest ranks in a Navy. In the Commonwealth it is the lowest rank in the Navy, followed by Able Seaman and Leading Seaman, and followed by the Petty Officer ranks....	Boatswain's Mate Boatswain's Mate A Boatswain's mate is a job classification in Navies and Coast Guards.*Boatswain's mate , a job classification in the United States Navy*Boatswain's mate , a job classification in the United States Coast Guard...

Recurring cast

Actor/actress	Character
Tammy MacIntosh Tammy MacIntosh Tammy MacIntosh is an Australian actress. She is best known for portraying Dr. Charlotte Beaumont on the medical drama All Saints.-Career:...	Commander Maxine "Knocker" White

Episodes

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