Suggestions by @aaronpirelatinedo

William Jackson Harper

as Ron Troupe in World's Finest

Jake Lacy

as Steve Lombard in World's Finest

Brianne Howey

as Cat Grant in World's Finest

Martin Lawrence

as Perry White in World's Finest

Brad Garrett

as Bibbo Bibbowski in World's Finest

Nicolas Cage

as Skeletor's ally in He-Man & She-Ra: Masters of the Universe

Michael Rooker

as General Sam Lane in World's Finest

Stanley Tucci

as Alfred Pennyworth in World's Finest

Walker Scobell

as Robin in World's Finest

Jay Lycurgo

as Jimmy Olsen in World's Finest

Emma Stone

as Lois Lane in World's Finest

Idris Elba

as Martian Manhunter in World's Finest

Peter Serafinowicz

as Metallo in World's Finest

Andrew Scott

as Lex Luthor in World's Finest

Sebastian Stan

as Batman in World's Finest

Taron Egerton

as Superman in World's Finest

Batman/Superman: World's Finest

as Next Project in Green Arrow: The Emerald Archer

David Leitch

as Director in Green Arrow: The Emerald Archer

Spoiler

as The New Hire in Green Arrow: The Emerald Archer

Mary Elizabeth Winstead

as Actors Already In My DCU in What Should Be In My DC Cinematic Universe