Suggestions by @askxavier

Harry Shearer

as Iron (voice) in DC movies/shows fancast

Score: +1

Seth MacFarlane

as Howard the Duck (Earth-47920) (voice) in Marvel movies/shows fancast

Score: +1

Ron Perlman

as Thanos (voice) in Marvel movies/shows fancast

Score: +1

Adam Devine

as Human Torch in Marvel movies/shows fancast

Score: +1

Hugo Weaving

as Parallax (Earth-3) (voice) in DC movies/shows fancast

Score: +1

Chloe Coleman

as Moon Girl in Marvel movies/shows fancast

Score: +1

Daniel Craig

as Hawkeye in Marvel movies/shows fancast

Score: +1

Garrett Hedlund

as Cyclops in Marvel movies/shows fancast

Score: +1

Christina Hendricks

as Black Widow in Marvel movies/shows fancast

Score: +1

Rob Riggle

as Rocket Raccoon (voice) in Marvel movies/shows fancast

Score: +1

Laurence Fishburne

as Groot (voice) in Marvel movies/shows fancast

Score: +1

Jesse Eisenberg

as Beast in Marvel movies/shows fancast

Score: +1

Rosario Dawson

as Gamora in Marvel movies/shows fancast

Score: +1

Scott Eastwood

as Starlord in Marvel movies/shows fancast

Score: +1

Jim Carrey

as Deadpool in Marvel movies/shows fancast

Score: +1

Will Arnett

as Wolverine in Marvel movies/shows fancast

Score: +1

Ana de la Reguera

as Katma Tui in DC movies/shows fancast

Score: +1

Gemma Chan

as China White in DC movies/shows fancast

Score: +1

Doug Jones

as Swamp Thing in DC movies/shows fancast

Score: +1

Bill Farmer

as G'nort (voice) in DC movies/shows fancast

Score: +1