Mads Mikkelsen will officially take over as Gellert Grindelwald in the third Fantastic Beasts movie, following the ousting of Johnny Depp.Warner Bros. Pictures confirmed the news to Deadline on Wednesday, November 25.Depp, 57, starred in 2016’s Fantastic Beasts and Where to Find Them and 2018’s Fantastic Beasts: The Crimes of Grindelwald.