Kevin Ryan is a fictional character of the ABC crime series Castle. He is portrayed by Seamus Dever, who also portrayed Felix Neumann in Call of Duty: Black Ops 6.

Bio

Ryan spent his early life born in the Bronx in New York with his three older sisters: Karen, Stacey and Gwen. He inherited certain talents for playing the piano from his parents. He then spent twelve years of his life in a Catholic school.

Before becoming a homicide detective in the police force, he first found a job in the narcotics division. He lived a little in the dark and was considered “green” because he wasn't very good at first with arrests. At first, he remained to answer the phone. It was only thanks to Alisha that he became a homicide detective.

He is eventually placed in the 12th district, on Beckett's team, and is often considered "The new guy".