Suggestions by @thepinkmenace

Harlo Haas

as The Robins in Superman: The Starlight Emperor

Dawson Littman

as The Robins in Superman: The Starlight Emperor

Spoiler

as The Robins in Superman: The Starlight Emperor

Sam Witwer

as Bruce Wayne in Superman: The Starlight Emperor

Mikey Madison

as Harley Quinn in Superman: The Starlight Emperor

Donald Glover

as The Joker in Superman: The Starlight Emperor

Holt McCallany

as Harvey Bullock in Superman: The Starlight Emperor

Henry Thomas

as Jim Gordon in Superman: The Starlight Emperor

Michelle Rodriguez

as Renee Montoya in Superman: The Starlight Emperor

Brandon Perea

as Jaime Reyes in Superman: The Starlight Emperor

Shea Whigham

as Perry White in Superman: The Starlight Emperor

Jeremy Pope

as Jimmy Olsen in Superman: The Starlight Emperor

Neil Patrick Harris

as Doctor Fate in Superman: The Starlight Emperor

David Wenham

as Armand Harcastle in Superman: The Starlight Emperor

Regina King

as Amanda Waller in Superman: The Starlight Emperor

Chris Obi

as Abin Sur in Superman: The Starlight Emperor

Bill Wise

as Brainiac 13 in Superman: The Starlight Emperor

Fred Hechinger

as Parasite in Superman: The Starlight Emperor

Clarence Maclin

as Killer Croc in Superman: The Starlight Emperor

Christoph Waltz

as Victor Fries in Superman: The Starlight Emperor