Suggestions by @tiffany6

Jim Carrey

as Waluigi in The Smash Cast

Score: +1

Danny DeVito

as Wario in The Smash Cast

Score: +1

Kaley Cuoco

as Princess Peach in The Smash Cast

Score: +1

Jim Carrey

as Luigi in The Smash Cast

Score: +1

Jack Black

as Mario in The Smash Cast

Score: +1