Suggestions by @aaronkime

Caleel Harris

as Signal (Duke Thomas) in DCU

Joe Keery

as Shazam (Billy Batson) in DCU

Chazz Palminteri

as Sal Maroni in DCU

Adam Driver

as Robotman (Cliff Steele) in DCU

Jacob Tremblay

as Robin (Tim Drake) in DCU

Brady Noon

as Red Hood (Jason Todd) in DCU

Tony Leung Chiu-wai

as Ra's al Ghul in DCU

Lyubomir Neikov

as Professor Pyg (Lazlo Valentin) in DCU

Saxon Sharbino

as Power Girl (Karen Starr) in DCU

Chanel Marriott

as Nyssa al Ghul in DCU

D'Pharaoh Woon-A-Tai

as Nightwing (Dick Grayson) in DCU

Ashley Walters

as Monitor (Mar Novu) in DCU

Chiwetel Ejiofor

as Mongul in DCU

Patton Oswalt

as Mister Mxyzptlk in DCU

Michael Mando

as Mister Zsasz (Victor Zsasz) in DCU

Tramell Tillman

as Black Lightning (Jefferson Pierce) in DCU

Tang Wei

as Lady Shiva (Sandra Wu-San) in DCU

Dakota Fanning

as Lena Luthor in DCU

Jamie Lee Curtis

as Leslie Thompkins in DCU

David Harewood

as Lucius Fox in DCU