Suggestions by @boomstick2000

Michelle Pfeiffer

as Emma Frost in 1980s Marvelverse

Sting

as Pyro in 1980s Marvelverse

Ed Harris

as Commander Lyle Rourke in Atlantis: The Lost Empire (2001)

Brad Dourif

as Toad in 1980s Marvelverse

Roddy Piper

as Sabretooth in 1980s Marvelverse

Kathleen Turner

as Mystique in 1980s Marvelverse

Ving Rhames

as Dr. Joshua Strongbear Sweet in Atlantis: The Lost Empire (2001)

Thandiwe Newton

as Princess Kida Kidagakash in Atlantis: The Lost Empire (2001)

Logan Lerman

as Charlie Babbot in Rain Man (2018)

Ewan McGregor

as Milo James Thatch in Atlantis: The Lost Empire (2001)

Sam Rockwell

as Raymond Babbot in Rain Man (2018)

Christopher Lloyd

as Vulture in 1980s Marvelverse

Tim Curry

as Mysterio in 1980s Marvelverse

Timothy Dalton

as Kraven The Hunter in 1980s Marvelverse

Bill Paxton

as Electro in 1980s Marvelverse

Martin Kove

as Sandman in 1980s Marvelverse

William Atherton

as The Lizard in 1980s Marvelverse

Rutger Hauer

as Abomination in 1980s Marvelverse

James Remar

as Bullseye in 1980s Marvelverse

David Warner

as Ultron in 1980s Marvelverse