Popsugar Entertainment Casting News The Matrix 4 Movie Cast The Matrix 4 Has Some of Your Favourite Stars (and Some New Faces) Taking the Red Pill 11 December 2019 by Mekishana Pierre View On One Page Photo 7 of 7 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 7 Jonathan Groff The Frozen and Mindhunter star was reported to have joined production on Dec. 9. Previous Next Start Slideshow Casting NewsThe MatrixMovie CastingMoviesKeanu Reeves