Suggestions by @michelebennett

Claude Rains

as Sheev Palpatine in Star Wars: Attack of the Clones

Humphrey Bogart

as Eddie Valiant in Who Framed Roger Rabbit (1947)

Bill Murray

as Forky in Toy Story (1985-2009)

Boris Karloff

as Count Dooku in Star Wars: Revenge of the Sith

Gregory Peck

as Commander Cody in Star Wars: Revenge of the Sith

Bela Lugosi

as General Grievous in Star Wars: Revenge of the Sith

Boris Karloff

as Count Dooku in Star Wars: Attack of the Clones

Paul Robeson

as Captain Panaka in Star Wars: The Phantom Menace

Sebastian Shaw

as Anakin Skywalker in Star Wars: The Phantom Menace

Lon Chaney Jr.

as Darth Maul in Star Wars: The Phantom Menace

Anita Ekberg

as Gwen Stacy in Spider-Man (60s)

Robert Wagner

as Flash Thompson in Spider-Man (60s)

Humphrey Bogart

as Batman in Superman (1940's)