Ray Fisher has been cast in the Batman-Superman movie.

The stage star has been tapped to take on the role of Cyborg opposite Ben Affleck and Henry Cavill in the as yet untitled superhero team-up flick.

The part of Cyborg, a member of the Justice League whose real name is Victor Stone, isn't a major one in the future blockbuster, but sources have told Variety that Fisher's part will become much more important over the next few years as Warner Bros. and DC Comics start making more films about the crime-fighting Justice League crew.

The all-star cast also includes Jesse Eisenberg, Gal Gadot and Amy Adams, with 'Man of Steel' helmer Zack Snyder directing from a script by David S. Goyer.

Fisher is known for his Broadway roles including his portrayal of Muhammad Ali in 'Fetch Clay, Make Man', and recently screen tested for J.J. Abrams' sci-fi epic, 'Star Wars: Episode VII'.

Cavill discusses the development potential of the Cyborg character in a bonus for the 'Man of Steel' DVD, explaining: ''I think he would create an incredible bridge between superheroes and humanity.''

The Batman-Superman feature is due in cinemas in May 2016.