Suggestions by @themiscgeek

Dylan O'Brien

as Damian Wayne/Robin (DCEU) in Batman: Into the Bat-verse

Barry Keoghan

as The Joker (The Batman) in Batman: Into the Bat-verse

Warren Christie

as Bruce Wayne/Batman (Arrowverse) in Batman: Into the Bat-verse

Zack Snyder

as Director in DC Extended Universe

Margot Robbie

as Harley Quinn in DC Extended Universe

Blake Lively

as Carol Ferris in DC Extended Universe

Mark Strong

as Sinestro in DC Extended Universe

Amber Heard

as Mera in DC Extended Universe

Jeremy Irons

as Alfred Pennyworth in DC Extended Universe

Laurence Fishburne

as Perry White in DC Extended Universe

Joe Manganiello

as Deathstroke in DC Extended Universe

Jesse Eisenberg

as Lex Luthor in DC Extended Universe

Jared Leto

as The Joker in DC Extended Universe

Amy Adams

as Lois Lane in DC Extended Universe

Ray Porter

as Darkseid in DC Extended Universe

Peter Guinness

as DeSaad in DC Extended Universe

Dylan O'Brien

as Robin in DC Extended Universe

James Marsden

as Hawkman in DC Extended Universe

Dwayne Johnson

as Black Adam in DC Extended Universe

Armie Hammer

as Green Arrow in DC Extended Universe