Suggestions by @maxhedroom

Jennifer Connelly

as Rouge in X-Men (1992)

Alec Baldwin

as Cyclops in X-Men (1992)

Julianne Moore

as Phoenix in X-Men (1992)

Willem Dafoe

as Wolverine in X-Men (1992)

Leonard Nimoy

as Professor X in X-Men (1992)

Burt Reynolds

as George Spahn in Once Upon a Time in Hollywood (2009)

Robert Pattinson

as Hush in Actors Who Could Play Hush in The Batman: Part II

Oscar Isaac

as Harvey Dent in Almost Cast: Joel Schumacher's Batmen

Anya Chalotra

as The Enchantress in Casting Call: Thor

Aubrey Plaza

as Hannah Fairmont in Casting Call: Thor

Jerrod Carmichael

as Demitrius Collins in Casting Call: Thor

Emmy Rossum

as Dr. Jane Foster in Casting Call: Thor

Glen Powell

as Jake Olson in Casting Call: Thor

Hafþór Júlíus Björnsson

as Thor in Casting Call: Thor

Chris Messina

as Loki in Casting Call: Thor

Ben Mendelsohn

as Hogun the Grim in Casting Call: Thor

Taron Egerton

as Fandral in Casting Call: Thor

Jorge Garcia

as Volstagg in Casting Call: Thor

Nick Offerman

as Odin in Casting Call: Thor

Brad Dourif

as The Reverend Norman McCay in Kingdom Come