Suggestions by @salihibrahim

Wally Wingert

as The Riddler in Justice League: Challenge

Clancy Brown

as Lex Luthor in Justice League: Challenge

Alan Tudyk

as The Joker in Justice League: Challenge

James Remar

as Hawkman in Justice League: Challenge

Lacey Chabert

as Zatanna in Justice League: Challenge

Maria Canals-Barrera

as Hawkgirl in Justice League: Challenge

Carl Lumbly

as Martian Manhunter in Justice League: Challenge

Phil LaMarr

as Green Lantern in Justice League: Challenge

Susan Eisenberg

as Wonder Woman in Justice League: Challenge

Michael Rosenbaum

as The Flash in Justice League: Challenge

George Newbern

as Superman in Justice League: Challenge

Charlie Schlatter

as Robin/Tim Drake in The Perfect Batman Animation

Corey Burton

as Shockwave in Transformers: Protectors of Cybertron

Parvesh Cheena

as Blades in Transformers: Protectors of Cybertron

Mark Hamill

as Kup in Transformers: Protectors of Cybertron

Yuri Lowenthal

as Drift in Transformers: Protectors of Cybertron

Susan Blu

as Arcee in Transformers: Protectors of Cybertron

Michael Bell

as Sideswipe in Transformers: Protectors of Cybertron

Wally Wingert

as Reed Richards in Marvel: The Telltale Series

Erica Lindbeck

as Felicia Hardy in The Magnificent Adventures of Spider-Man