This is a list of episodes for Castle

Castle (TV series)

Castle is an American comedy-drama television series, which premiered on ABC on March 9, 2009. The series is produced by Beacon Pictures and ABC Studios. On January 10, 2011, Castle was renewed for a fourth season...

, a television series on ABC

American Broadcasting Company

The American Broadcasting Company is an American commercial broadcasting television network. Created in 1943 from the former NBC Blue radio network, ABC is owned by The Walt Disney Company and is part of Disney-ABC Television Group. Its first broadcast on television was in 1948...

 which was created by Andrew W. Marlowe

Andrew W. Marlowe

Andrew W. Marlowe is an American screenwriter.He graduated from Columbia University with a degree in English Literature, and attended the University of Southern California where he obtained his MFA in Screenwriting....

. The show premiered on March 9, 2009, the second season started on September 21, 2009, the third season started on September 20, 2010, and the fourth season started on September 19, 2011, on ABC.

Castle stars Nathan Fillion

Nathan Fillion

Nathan Fillion is a Canadian actor, currently starring as Richard Castle on the ABC series Castle. He is also known for his portrayal of the lead role of Captain Malcolm Reynolds in the television series Firefly and its feature film continuation, Serenity.He has acted in traditionally distributed...

 as Richard Castle

Richard Castle

Richard Edgar "Rick" Castle is a fictional character portrayed by Nathan Fillion in the ABC crime series Castle.-Family life:...

, a famous mystery novelist, and Stana Katic

Stana Katic

Stana Katic is a film and television actress. She is best known for her portrayal of Detective Kate Beckett in ABC's Castle.- Early life :...

 as NYPD detective Kate Beckett

Kate Beckett

Katherine "Kate" Beckett is a fictional character portrayed by Stana Katic in the ABC crime series Castle.-Background:Beckett is a detective with the Twelfth Precinct Homicide Squad of the New York City Police Department, where she worked with fellow detectives Javier Esposito and Kevin Ryan and...

.

Series overview

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Season		Episodes	Originally aired		DVD DVD A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....  release date
			Season premiere Season premiere In North America, a season premiere is the first episode of a new season of a given television show. It often airs in September or October, after several months of reruns.-Evaluating the changes:...	Season finale Season finale A season finale is the final episode of a season of a television program...	Region 1	Region 2	Region 4
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Episode list

"U.S. viewers (in millions)" refers to the number of Americans who viewed the episode on the day of its original broadcast.

Season 1 (2009)

No. by series	No. by season	Title	Directed by	Written by	U.S. viewers (in millions)	Original air date

Season 2 (2009–10)

No. by series	No. by season	Title	Directed by	Written by	U.S. viewers (in millions)	Original air date

Season 3 (2010–11)

No. by series	No. by season	Title	Directed by	Written by	U.S. viewers (in millions)	Original air date

Season 4 (2011–12)

On January 10, 2011, ABC announced that Castle had been renewed for a fourth season. Penny Johnson Jerald

Penny Johnson Jerald

Penny Johnson Jerald is an American actress.  She played Beverly Barnes on the HBO comedy series The Larry Sanders Show, Kasidy Yates on the syndicated science fiction series Star Trek: Deep Space Nine, and Sherry Palmer on the Fox action/drama series 24.-Career:Trained at the Juilliard School,...

 joins the cast as the new captain, Victoria "Iron" Gates.

No. by series	No. by season	Title	Directed by	Written by	U.S. viewers (in millions)	Original air date