Suggestions by @jdfitzgerald

Matthew Fogel

as Writer in Super Smash Bros The Movie

Shigeru Miyamoto

as Producer in Super Smash Bros The Movie

Chris Renaud

as Director in Super Smash Bros The Movie

Anya Taylor-Joy

as Princess Peach in Recasting Illumination's Super Mario Bros

Kristen Schaal

as Toadette in Recasting Illumination's Super Mario Bros

Nancy Cartwright

as Bowser Jr. in Recasting Illumination's Super Mario Bros

Malcolm McDowell

as King Boo in Recasting Illumination's Super Mario Bros

Seth Rogen

as Donkey Kong in Recasting Illumination's Super Mario Bros

Christopher Lloyd

as Professor E. Gadd in Recasting Illumination's Super Mario Bros

Fred Armisen

as Cranky Kong in Recasting Illumination's Super Mario Bros

Kevin Michael Richardson

as Kamek in Recasting Illumination's Super Mario Bros

Danny Elfman

as Composer in Recasting Illumination's Super Mario Bros

Jack Black

as Bowser in Recasting Illumination's Super Mario Bros

Charlie Day

as Luigi in Recasting Illumination's Super Mario Bros

Keegan-Michael Key

as Toad in Recasting Illumination's Super Mario Bros

John Cleese

as Toadsworth in Recasting Illumination's Super Mario Bros

Sebastian Maniscalco

as Foreman Spike in Recasting Illumination's Super Mario Bros

Dee Bradley Baker

as Yoshi in Recasting Illumination's Super Mario Bros

Danny DeVito

as Mario Mario Sr. in Super Mario Bros

Danny DeVito

as Wario in Super Mario Bros. (Illumination Movies)