List of Castle characters

The following is a list of characters in the ABC crime series Castle.

Richard "Rick" Edgar Castle (né Richard Alexander Rodgers) (Nathan Fillion) is a famous author who weathered through twenty rejections before he got his first manuscript published. He keeps his first rejection letter framed on his wall at home to keep himself motivated.

When the series begins, Castle has decided to kill off his most famous character, Derrick Storm, because the character has become boring to him. After weathering the backlash from his fans and nagging from his publisher, who is also his ex-wife, Castle is requested to help NYPD Detective Kate Beckett with a murder case that copycats scenarios from his previous novels (written before "Derrick Storm" series). Working alongside Beckett gives Castle a new source of inspiration and, after assisting Beckett with the case, Castle takes the opportunity to use his knowledge and skills, and his close friendship with the Mayor, to stay on with the NYPD in a consulting capacity. In the season seven finale "Hollander's Woods", an incident in Castle's past is revealed that had led to his ambition to become a writer.

Captain Katherine "Kate" Houghton Beckett (Stana Katic) is a homicide detective with the NYPD. Having graduated from New York City's prestigious Stuyvesant High School and Stanford University, she is a first-class investigator who has gained a reputation as a detective who is intrigued by unusual cases, although she is also known for her ability to empathize with the victims of violent crimes. She joined the force after her mother was murdered and the case was (until the season 5 premiere) unsolved.

In season eight, Beckett is promoted to Captain and made Commanding Officer of the 12th Precinct.

Initially finding Castle to be quite annoying, Beckett gradually warms to him as they work together to solve murder mysteries, utilizing his imagination and insight into a killer's mind and her authority and position within the police department. Even though Beckett does date (and subsequently break up with) several different men during her partnership with Castle, she eventually develops feelings for him, though she is reluctant to acknowledge them openly to anyone. Her reluctance to acknowledge her feelings for Castle, as well as her rejection of her previous boyfriends, stems from her determination to not get hurt, especially in the aftermath of her mother's death. Nevertheless, Beckett will drop subtle hints of her interest in Castle to him, sometimes in the form of suggestive comments that evoke suggestive imagery in Castle's mind. The two begin dating in season five, get engaged in season six, and are married in season seven.

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