John Wick: Chapter 4: Hiroyuki Sanada joins the cast in mystery role

Keanu Reeves and Cast 'John Wick: Chapter 4' Character Posters

Photos: John Wick: Chapter 4 London, Berlin and Paris Premieres

Exclusive: John Wick 4 Stars on Playing Keanu Reeves' Friend and Foe

Ian McShane on John Wick 4: 'Winston's world has been turned upside down

This Key Cast Member Will Return For John Wick 4

John Wick 4 Premiere: Keanu Reeves, Donnie Yen, and cast walk the red carpet in Hollywood

IGN - John Wick 4 has cast Donnie Yen alongside Keanu Reeves. Yen will play an old friend and fellow assassin to John Wick in the fourth installment of the series.

John Wick: Chapter 4 Movie Preview

Ip Man' Star Donnie Yen Joins Cast of 'John Wick 4

John Wick 4 release date, trailer and more