When British thespian David Thewlis was cast in the upcoming film Wonder Woman, his role was not revealed…until now.

Thewlis, who will be forever by now be known for his role of werewolf Remus Lupin in the Harry Potter film saga, will play the Roman God of War, Ares. With a combination of practical effects and computer generated imagery, Thewlis will combat Gal Gadot‘s take of the DC superhero during her time in World War I. Chris Pine plays Steve Trevor with Patty Jenkins directing.

The film, already shot and edited, will be released on June 2 from Warner Bros. Pictures.