List of Castle characters

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

Richard Castle

Main article: Richard Castle

Richard "Rick" Edgar Castle (Nathan Fillion) is a famous author, who, after having just killed off his most famous character, Derek Storm, because he no longer found the character interesting, and being nagged by his publisher/ex-wife, is pulled in by NYPD Detective Kate Beckett to help with a copy-cat case and discovers a new source of inspiration in her. Castle now has the opportunity to use his knowledge and skills to help solve murders.

Kate Beckett

Main article: Kate Beckett

Detective Katherine "Kate" Beckett (Stana Katic) is a homicide detective with the NYPD. She is a first-class investigator who has gained a reputation as a detective who's intrigued by unusual cases, although she is also known for her ability to empathise with the victims of violent crimes. She joined the force after her mother was murdered and the case was never solved.

Alexis Castle

Alexis Castle (Molly Quinn) is Castle's fifteen-year-old daughter, who is often noted to be more mature and responsible than her father. She is very bright and enjoys school. Her social and interpersonal issues often parallel some aspect of the case Castle and Beckett are investigating, while Castle sometimes asks her opinion on the motivation for some actions committed by the killers he hunts (Such as who someone might ask for money). She is shown to be very close to her father, as they do many activities together, including fencing and lazertag, although she has also developed a certain bond with Beckett, asking Beckett's advice when contemplating going on an exchange trip to France and making arrangements with Beckett to spend three days working at the police station sorting through excess evidence when her civics class required her to work for a legal agency in New York.

Martha Rodgers

Martha Rodgers (Susan Sullivan) is an actress on and off Broadway, is Castle's mother and lives with him and her granddaughter Alexis. She helps her son through the difficulties of raising a teenage girl (even one as mature as Alexis), but is also shown to have an active social life. She lives with Castle partly because a previous husband absconded with all her savings.

Javier Esposito

Detective Javier Esposito (Jon Huertas) works in the homicide division with Kevin Ryan as part of Beckett's team. He is always ready with a sardonic comment to keep Beckett on her toes and enjoys the way Castle riles her up. He and Ryan are friends, even though they constantly argue about obscure facts.

Kevin Ryan

Detective Kevin Ryan (Seamus Dever) also works alongside Esposito as part of Beckett's team. He and Esposito regularly tease Beckett- such as when they discovered about her brief modelling career when she was a teenager-, but they are incredibly protective of her and ultimately treat her like one of the guys. He has a girlfriend named Jenny, mentioned in at least one episode prior to her appearance in "The Mistress Always Spanks Twice", who calls him to check up on him on an apparently hourly basis. The character was a late addition to the show, as the original presentation pilot was only 37 minutes long.

Lanie Parish

Dr. Lanie Parish (Tamala Jones) is a medical examiner who has a friendly outlook. As a friend of Beckett's, she is one of the few people Beckett can talk to easily and without reservations. She is also one of the few people who notices the personal connection between Beckett and Castle, and occasionally urges her to act on it.

Roy Montgomery

Captain Roy Montgomery (Ruben Santiago-Hudson) is Beckett's boss who appreciates Beckett's determination and diligence but maintains a close watch to make sure the investigation goes smoothly. He is amused by how much Castle annoys Beckett, but also appreciates how effective the two are when they work together. He has also demonstrated a strong attachment and respect for Beckett, commenting to Castle that he has never known anyone who can comfort the victims of violent crimes better than Beckett, and arguing with the governor to accept a deal that would have allowed a known drug trafficker to walk free when he offered information that would have allowed them to capture the man who murdered Beckett's mother (Although the deal was revealed to be fake when it turned out that the drug trafficker was the killer). He has also commented that Castle is surprisingly good at police work, once speculating that Castle may have some police in his family history on his unknown father's side of the family.

Sidney Perlmutter

Dr. Sidney Perlmutter (Arye Gross) is a medical examiner. He is shown to have more than a few quirks, such as eating lunch off of his autopsy tables- reasoning that the disinfectants used in the morgue mean that it's actually "the cleanest room in the city"-, and always has a sarcastic remark.