Suggestions by @haydenharris

Sam Heughan

as Mirror Master in Justice League: The Flashpoint Paradox

Tyler Labine

as Kevin Smith in Stan Lee Biography

Will Friedle

as Dr. James Possible in Kim Possible

Alex Russell

as Gene Kelly in Sinatra

Daniel Craig

as Frank Sinatra. in Sinatra

Anthony Hopkins

as Reflux in The Incredibles

Terry Crews

as Krushauer in The Incredibles

Cory Michael Smith

as He-Lectrix in The Incredibles

Oliver Platt

as Tan Divo in The clone wars characters in live action

Sam Worthington

as Pyro in Marvel Cinematic Universe

Noah Centineo

as Billy Joel in Piano Man

Colin Firth

as Narrator in James Bond (reboot)

Danny DeVito

as Wario in Super Mario Bros (Animated Film)

Enrico Colantoni

as Phil Collins in Rockstars Biopics

Christian Bale

as Harry Ellis in Die Hard

Mark Hamill

as Swamp Thing in DCEU Rebooted

Dexter Fletcher

as Director in Led Zeppelin Biopic

Taika Waititi

as Minion in Megamind

Russell Crowe

as Megamind's Dad in Megamind

Robert Downey Jr.

as Megamind's Dad in Megamind