Cast
- Wario as Shadow
- Shake King as Black Doom
- Bowser as Dr. Eggman
- Dry Bowser as Gerald Robotnik
- Toadsworth as G.U.N. Commander
- Chunky Kong as President
- Candy Kong as Secretary
- Mario as Sonic
- Yoshi as Tails
- Luigi as Knuckles
- Peach as Amy
- Daisy as Rouge
- Donkey Kong as Vector
- Funky Kong as Espio
- Diddy Kong as Charmy
- Bowser Jr. as E-123 Omega
- Mona as Maria
- Rosalina as Cream
- Luma as Cheese
- Koopa Troop as Eggman's Robots
- X-Nauts as Black Arms
- Toad (species) as G.U.N. Soliders
- Wario-Man as Super Shadow
- Petey Piranha as Black Bull
- Black Jewel as Devil Doom