Suggestions by @toughsandwich
993 suggestions
Hugh Laurie
as Raj al Ghul in Batman
Bryan Cranston
as Commissioner Jim Gordon in Batman

Emma Stone
as Oracle in Batman

Bill Nighy
as Alfred Pennyworth in Batman

Asa Butterfield
as Robin in Batman
Sean Bean
as Batman in Batman
Bruce Campbell
as Booster Gold in Supergirl and the Legion of Superheros
Brendan Fraser
as Superman in Supergirl and the Legion of Superheros
Al Pacino
as Rogol Zaar in Supergirl and the Legion of Superheros

Samuel L. Jackson
as Darkseid in Supergirl and the Legion of Superheros

Brie Larson
as Saturngirl in Supergirl and the Legion of Superheros

Ashton Sanders
as Lightning Lad in Supergirl and the Legion of Superheros
Jenna Ortega
as Duplicate Girl in Supergirl and the Legion of Superheros
Robert Pattinson
as Dynamo in Supergirl and the Legion of Superheros

Jeremy Ray Taylor
as Bouncing Boy in Supergirl and the Legion of Superheros

Sydney Sweeney
as Andromeda in Supergirl and the Legion of Superheros
Daniel Radcliffe
as Braniac 5 in Supergirl and the Legion of Superheros
Kristen Bell
as Supergirl in Supergirl and the Legion of Superheros

Woody Harrelson
as Metamorpho in Martian Manhunter
Elijah Wood
as Beast Boy in Martian Manhunter