Suggestions by @corvuscameron

Tati Gabrielle

as Livewire in Man of Tomorrow (2027)

Ed Skrein

as Metallo in Man of Tomorrow (2027)

Christopher Judge

as Mongul in Man of Tomorrow (2027)

Martin Short

as Mister Mxyzptlk in Man of Tomorrow (2027)

Ralph Fiennes

as Brainiac in Man of Tomorrow (2027)

Ben Mendelsohn

as Brainiac in Man of Tomorrow (2027)

Sean Harris

as Brainiac in Man of Tomorrow (2027)

David Corenswet

as Ultraman in Man of Tomorrow (2027)

Sara Sampaio

as Eve Teschmacher in Man of Tomorrow (2027)

Neva Howell

as Martha Kent in Man of Tomorrow (2027)

Pruitt Taylor Vince

as Jonathan Kent in Man of Tomorrow (2027)

Christopher McDonald

as Ron Troupe in Man of Tomorrow (2027)

Mikaela Hoover

as Cat Grant in Man of Tomorrow (2027)

Beck Bennett

as Steve Lombard in Man of Tomorrow (2027)

Jason Momoa

as Lobo in Man of Tomorrow (2027)

Wendell Pierce

as Perry White in Man of Tomorrow (2027)

Milly Alcock

as Supergirl in Man of Tomorrow (2027)

Monica Barbaro

as Wonder Woman in Man of Tomorrow (2027)

Brandon Sklenar

as Batman in Man of Tomorrow (2027)

Skyler Gisondo

as Jimmy Olsen in Man of Tomorrow (2027)