Suggestions by @jackrichardson

Emily Blunt

as Invisible Woman in DC v Marvel

John Krasinski

as Mr. Fantastic in DC v Marvel

Gary Oldman

as Commissioner Gordon in DC v Marvel

Zendaya

as Catwoman in DC v Marvel

Emma Stone

as Batgirl in DC v Marvel

Tye Sheridan

as Toad in DC v Marvel

Bradley Cooper

as Rocket Racoon in DC v Marvel

Zazie Beetz

as Domino in DC v Marvel

Vin Diesel

as Groot in DC v Marvel

Naomi Scott

as Green Lantern (IIIII) in DC v Marvel

Rami Malek

as Green Lantern (IIII) in DC v Marvel

Eric Johnson

as Green Lantern (III) in DC v Marvel

James Marsden

as Green Lantern in DC v Marvel

David Sobolov

as Killer Croc in DC v Marvel

Katie Cassidy

as Black Canary in DC v Marvel

Idris Elba

as Heimdall in DC v Marvel

Liev Schreiber

as Darkseid in DC v Marvel

Anthony Hopkins

as Odin in DC v Marvel

Jon Voight

as Highfather in DC v Marvel

Julian Bleach

as Green Goblin in DC v Marvel