Suggestions by @inactive

Zendaya

as Michelle Jones in Web of the Spider-Man

Tom Holland

as Peter Parker in Web of the Spider-Man

Hunter Schafer

as Gwen Stacy in Spider-Man 4

megaty777

as The Ghost of Christmas Past in A Christmas Carol (MyCast Edition)

Lauren Ridloff

as Selena Kyle in Actresses that could play Catwoman

Lee Jung-jae

as Clark Kent/Kal-El in Actors who could play Superman

Jack Nicholson

as King Koopa in Super Mario Bros. (1993)

Warwick Davis

as Toad in Super Mario Bros. (1993)

Marisa Tomei

as Princess Peach in Super Mario Bros. (1993)

John Turturro

as Luigi in Super Mario Bros. (1993)

Danny DeVito

as Mario in Super Mario Bros. (1993)

Bo Burnham

as Wade Wilson in Me and Gordillio's Submission to the Fancast Competition

Peter Dinklage

as James "Logan" Howlett in Me and Gordillio's Submission to the Fancast Competition

Robert Sheehan

as Loki Laufeyson in Me and Gordillio's Submission to the Fancast Competition

Hoyeon

as Yelena Belova in Me and Gordillio's Submission to the Fancast Competition

Lashana Lynch

as Natasha Romanoff in Me and Gordillio's Submission to the Fancast Competition

Ben Whishaw

as Stephen Strange in Me and Gordillio's Submission to the Fancast Competition

Daniela Melchior

as Selena Kyle in Me and Gordillio's Submission to the Fancast Competition

Sacha Baron Cohen

as The Joker in Me and Gordillio's Submission to the Fancast Competition

Paul Bettany

as Bruce Banner in Me and Gordillio's Submission to the Fancast Competition