Suggestions by @castingsinmyblood

Abin Sur

as Yul Brynner in What if this actor played

Thaal Sinestro

as David Niven in What if this actor played

Rick Santoro

as Jack Quaid in What if this actor played

Noah Cross

as John Lithgow in What if this actor played

Alberto Falcone

as John Turturro in What if this actor played

Lex Luthor (Gene Hackman)

as Harvey Korman in What if this actor played

Bilbo Baggins

as Peter Sallis in What if this actor played

Obi-Wan Kenobi

as Toshiro Mifune in What if this actor played

George Bailey

as Don Cheadle in What if this actor played

Dr. Zaius (Planet of the Apes)

as Anjelica Huston in What if this actor played

Gimli

as Aldo Ray in What if this actor played

Appa Ali Apsa

as Thayer David in What if this actor played

Gimli

as Pinto Colvig in What if this actor played

The Narrator (The Twilight Zone)

as Tom Waits in What if this actor played

King Lear

as Christopher Plummer in What if this actor played

Frankenstein’s Monster

as Adam Driver in What if this actor played

Hercule Poirot

as Ian Holm in What if this actor played

Rooter

as Nick Nolte in What if this actor played

Willy Wonka

as David Tennant in What if this actor played

Gollum

as Candy Candido in What if this actor played