John Wick: Chapter 3 is reportedly casting Japanese actors and may end up filming in Japan, among other locations around the world.
Omega Underground is reporting that John Wick: Chapter 3 is casting Japanese actors, which further suggests that the story about Sanada joining the cast is accurate.
As Omega Underground notes, it’s possible that Sanada is playing a member of the High Table in John Wick: Chapter 3, and that the film will reveal where the Japanese Yakuza fit into the underworld of assassins and professional killers established in the previous John Wick movies.
Much like John Wick: Chapter 2 was heavier on the world-building that helped to earn John Wick its loyal fanbase, these details indicate that Chapter 3 will be even more ambitious and continue to expand the scope of the franchise’s comic book-esque mythology.