No word yet on who is he playing.
- David Yates is set to return as director.
- He's also rumored to have a cameo in the Fantastic Beats movie coming out this month.
You don’t see Grindelwald’s face in FB1. Just the back of his head… this shot, in fact. pic.twitter.com/4wJPLFqMLl— Andrew Sims (@sims) November 2, 2016
source / source / source