Simon Pegg could be a good choice, but Reddit users were sounding off their other ideas for Riddler, including David Tennant, Michael Emerson and Jim Parsons. There’s loads of talent to go around, and as casting begins shortly, fans will start getting some answers. The Batman is set to open on June 25, 2021, and rumor has it, the movie will begin filming fall of this year.
Article source: https://www.cinemablend.com/news/2466933/see-what-simon-pegg-could-look-like-as-the-batmans-riddler