Suggestions by @jdfitzgerald

Tom Holland

as Percy in No Sleep for Cranky

Jim Carrey

as Cranky in No Sleep for Cranky

Frank Welker

as Pulterpup in Luigi's Mansion - The Movie

Aaron Horvath and Michael Jelenic

as Director in Luigi's Mansion - The Movie

Matthew Fogel

as Writer in Luigi's Mansion - The Movie

Shigeru Miyamoto and Chris Meledandri

as Producer in Luigi's Mansion - The Movie

Christopher Lloyd

as Professor E. Gadd (E. Gadd) in Luigi's Mansion - The Movie

Brad Garrett

as Boolossus in Luigi's Mansion - The Movie

Danny Elfman

as Composer in Luigi's Mansion - The Movie

Shigeru Miyamoto

as Producer in LUIGI'S MANSION (MY SBCU)

Ben Kingsley

as Ganon/Ganondorf in Super Smash Bros. (Live Action)

Millie Bobby Brown

as Princess Zelda in Super Smash Bros. (Live Action)

Taron Egerton

as Link in Super Smash Bros. (Live Action)

Alec Baldwin

as Bowser in Luigi's Mansion

Frank Welker

as Spooky in Luigi's Mansion

Betty White

as Nana in Luigi's Mansion

Bill Hader

as Luigi in Luigi's Mansion

Brad Garrett

as Boolossus in Luigi's Mansion

Rowan Atkinson

as Shivers in Luigi's Mansion

Billy Connolly

as Neville in Luigi's Mansion