"Castle" is the crime drama series premiered in the U.S. March 9, 2009 on ABC channel. "Castle" TV show follows the process of murder investigation conducted by Detective Kate Beckett (Stana Katic). Unexpectedly she notes the similarity of the crime scene with the same one described by the famous detective writer Richard Castle (Nathan Fillion). Castle becomes a suspect, but upon the investigation completion he proved to be innocent. Using his friendships with some powerful people in the city, he gets the opportunity to attend all investigations conducted by Detective Beckett until he gets enough material for his next book. Detective Kate Beckett (Stana Katic) got the reputation of detective who prefers an unusual cases. She joined the police after her mother was murdered, whose case was never solved. She spent a semester studying in Kiev, where she learned the Russian language. Their sometimes uneasy relationships with the Castle are often ridiculed by other TV show's character: Javier Esposito (Jon Huertas), the Detective and the another member of Beckett's team. He and detective Kevin Ryan (Seamus Dever) constantly mock Beckett, but in fact they are protecting her and treat Beckett as a very crucial part of the team . Next TV show's character is Lani Parish (Tamala Jones), medical examiner, a friend of Beckett, with whom she can talk heart to heart; advises Beckett to develop her relationship with the Castle. "Castle" TV show also features Roy Montgomery (Ruben Santiago-Hudson), Beckett's Boss. He likes Beckett's manner of investigation and her attention to details, but he always keeps his eye close on Beckett activity. He amuses with Beckett and Castle relationship, but he understands that they work well together. Another character is Alexis Rogers (Molly Quinn), teenage daughter of Castle, which much easier communicates with adults than with her peers and often behaves more conscious than her father and March Rogers (Susan Sullivan), Castle's mother, and the former Broadway actress, who dying to find a wealthy unmarried man.

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