Keanu Reeves as John Wick, a legendary hitman on the run Halle Berry as Sofia, an assassin Ian McShane as Winston, the owner and manager of the Continental Hotel in New York. Ruby Rose as Ares, a mute assassin and previously Santino's security enforcer in Chapter 2. Common as Cassian, previously Gianna's chief bodyguard in Chapter 2, whose life was spared by Wick.