John Wick is a fictional hitman, the title character of the John Wick film series, created by Derek Kolstad and played by Keanu Reeves in the films. He is a retired assassin born Jardani Jovonovich in the Byelorussian SSR of the Soviet Union, raised by the Ruska Roma, and trained as a killer in New York. Fans know him as the Baba Yaga and the Boogeyman.

He is known for being pulled back into the criminal under