One of the most intriguing aspects of the John Wick Universe has been the vast array of killers on display. Of course, many would point to Keanu Reeves' titular assassin as the best of the lot, but there are the likes of Donnie Yen's Caine to consider. Throw in Mr. Nobody with his guns and tracking dog; it's quite an eclectic bunch.
Source：https://www.cbr.com/the-continental-yen-assassin-john-wick/
