Suggestions by @iamthedarkbourne

Paul Giamatti

as Phil in Hercules

Danny DeVito

as Phil in Hercules

Paul Giamatti

as Krusty The Klown in The Simpsons

Corey Stoll

as Blendin Blandin in Gravity Falls

Pacha

as American Moose in North American Animals (voice actor reference)

Robert Downey Jr.

as Flint in Alex the Adventurer

Johnny Depp

as Bat in Beaver the Beaver (1995)

Robin Williams

as Beaver the Beaver in Beaver the Beaver (1995)

Kevin Hart

as Cappy in The Super Mario Movie (If all the characters from the game appeared)

Emma Stone

as Birdo in The Super Mario Movie (If all the characters from the game appeared)

Ewan McGregor

as King Bob omb in The Super Mario Movie (If all the characters from the game appeared)

Gaten Matarazzo

as Bowser junior in The Super Mario Movie (If all the characters from the game appeared)

Sebastian Maniscalco

as Foreman spike in The Super Mario Movie (If all the characters from the game appeared)

Tom Kenny

as Yoshi in The Super Mario Movie (If all the characters from the game appeared)

Dee Bradley Baker

as Spike in The Super Mario Movie (If all the characters from the game appeared)

Jack Black

as Bowser in The Super Mario Movie (If all the characters from the game appeared)

Tim Curry

as King k rool in The Super Mario Movie (If all the characters from the game appeared)

Danny Pudi

as Diddy kong in The Super Mario Movie (If all the characters from the game appeared)

Christopher Lloyd

as Dr e gadd in The Super Mario Movie (If all the characters from the game appeared)

Jemaine Clement

as King boo in The Super Mario Movie (If all the characters from the game appeared)