Jonathon 'John' Wick(born Jardani Jovonovich) is a legendary hitman who previously worked for the Tarasov mob until his retirement. He retired in order to spend time with his wife, Helen wick, who later died of an unidentified illness. His superior, Viggo Tarasov promised to allow John to quit if he first completed an "impossible task": killing all of Tarasov's enemies in a single night. Having succeeded, John retired and lived peacefully for just over five years.

Following his wife's death, John came out of retirement after Viggo's son, Losev Tarasov murdered his dog, Daisy(who was gifted to John posthumously by Helen to help him grieve), and stole his car during a home invasion. He succeeds in his quest by killing Iosef and eventually Viggo before reacquiring his car from Viggo's brother Abram Tarasov