Suggestions by @mr_blue_sky

Michael Shannon

as Gruesome in Dick Tracy & Q.T. Hush: Most Wanted

Jesse Plemons

as Mr. Memory in Dick Tracy & Q.T. Hush: Most Wanted

John Rhys-Davies

as "Deaths" in Dick Tracy & Q.T. Hush: Most Wanted

Spoiler

as "Deaths" in Dick Tracy & Q.T. Hush: Most Wanted

Alan Tudyk

as Sauron in New Voice Actors to Play Marvel and DC Characters

Rami Malek

as Flattop Jones in Dick Tracy & Q.T. Hush: Most Wanted

Rory Kinnear

as Stooge Viller in Dick Tracy & Q.T. Hush: Most Wanted

Hayden Christensen

as Actors Currently In The New MulToonVerse in What Should Be In The New MulToonVerse

Hayden Christensen

as "The Ultimate Lifeform" in Sonic the Hedgehog: Fist Bump

Nick Offerman

as Dr. Eggman (live-action) in Casting a random character every saturday #24: Eggman

Charles Dance

as Anton Arcane in Animal Man: When Nature Calls

Radioactive Man (Chen Lu)

as The Masters Of Evil in The NEW Anythingverse (Idea Pitch)

Brett Azar

as "You Two Seem Valuable..." in Thor: Battle Of The Gods

Valeriia Karaman

as "You Two Seem Valuable..." in Thor: Battle Of The Gods

Matthew Lewis

as "You Two Seem Valuable..." in Thor: Battle Of The Gods

Mark Powley

as "You Two Seem Valuable..." in Thor: Battle Of The Gods

Spoiler

as "You Two Seem Valuable..." in Thor: Battle Of The Gods

Jasper Pääkkönen

as Malekith in Thor: Battle Of The Gods

Christopher Lee

as David Cronenberg in The Collabs We Didn't Get

Simon Pegg

as David Lynch in The Collabs We Didn't Get