Suggestions by @raymondleduc

Bill Murray

as Peter Venkman in The Lego Ghostbusters/Wizard of Oz Crossover We Didn't Know we Needed

John Cena

as Blastoise in Pokémon

Carlos Alazraqui

as Pidgeotto (Hombre) in Pokémon

Salma Hayek

as Pidgeotto (Mujer) in Pokémon

Justice Smith

as Tim Goodman in Pokémon

Dwayne Johnson

as Charizard in Pokémon

Tom Selleck

as Phil Jackson in Kobe Bryant Biopic

Justin Roiland

as Mr. Poopybutthole in Rick and Morty in the Live Action Dimension (Because the Producers are mad with Power and Money)

Billy Porter

as Richard Penniman in Lucille: Little Richard Biopic

Awkwafina

as Jesse (Of Team Rocket) in Pokémon

Sophia Lillis

as Misty in Pokémon

Henry Golding

as James (Of Team Rocket) in Pokémon

Lizzo

as Wigglytuff in Pokémon

Mark Wahlberg

as Producer in Three Mile Lyle

Edward Norton

as Franklin D. Roosevelt in The Big Three

Dakota Fanning

as Clarice Starling in The Silence of the Lambs

Neil Patrick Harris

as Josiah Trelawny in Red Dead Redemption

Iggy Pop

as Micah Bell in Red Dead Redemption

Bennett Miller

as Director in Three Mile Lyle

Joe Manganiello

as Lyle Alzado in Three Mile Lyle