Once James Gunn announced plans for Man of Tomorrow as his Superman sequel, the question that loomed over the film was what DC villain would be big enough to force David Corenswet's Man of Steel and Nicholas Hoult's Lex Luthor to set aside their differences and work together for the greater good of humanity.
There were plenty of theories, and many have now been confirmed with the report that Brainiac is Man of Tomorrow 's villain . The news comes prior to Gunn and DC Studios officially locking in an actor to play the superintelligent green android/cyborg who is regarded as one of Superman's greatest foes .
That leaves room for suggestions on who Man of Tomorrow should cast as Brainiac. Anyone must be comfortable with heavy makeup/prosthetics to transform into the physical

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