Suggestions by @jackcoleman

Alex Borstein

as Hooktail in Paper Mario

Cillian Murphy

as TEC-XX in Paper Mario

Patrick Stewart

as Merlon in Paper Mario

Jesse Eisenberg

as Goombario in Paper Mario

Zach Galifianakis

as Gourmet Guy in Paper Mario

Queen Latifah

as Madame Flurrie in Paper Mario

Finn Wolfhard

as Koops in Paper Mario

Gary Sinise

as General Guy in Paper Mario

Jackson Robert Scott

as Yoshi Kid in Paper Mario

Albert Brooks

as Mayor Penguin in Paper Mario

Rob Paulsen

as Koopa Bros. in Paper Mario

Cameron Diaz

as Jolene in Paper Mario

RuPaul

as King Croacus IV in Paper Mario

Daniel Stern

as Kalmar in Paper Mario

Amanda Seyfried

as Olivia in Paper Mario

Michael Caine

as Bootler in Paper Mario

Benedict Cumberbatch

as Ludwig in Paper Mario

Hugh Jackman

as Muscular in Paper Mario

Mindy Kaling

as Lady Bow in Paper Mario

Sarah Silverman

as Lemmy in Paper Mario