Cast
- Mario as Sonic
- Yoshi as Tails
- Donkey Kong as Knuckles
- Pauline as Amy Rose
- Oogtar as Antoine
- Princess Daisy as Bunnie Rabbot
- Princess Peach as Sally Acorn
- Diddy Kong as Rotor the Walrus
- Toad as Uncle Chuck
- Bowser as Dr. Eggman
- Ludwig von Koopa as Snively
- Lemmy Koopa as Scratch
- Iggy Koopa as Grounder
- Boshi as Coconuts
- Toadsworth as King Acorn
- Detective Herlock Solmes as Ari
- Birdo as Cream
- Green Toad as Manic
- Yellow Toad as Rocket
- Chunky Kong as Big the Cat
- Kiddy Kong as Froggy
- Wario as Sleet
- Waluigi as Dingo
- Purple Toad as Ray
- Luigi as Shadow
- Wendy O. Koopa as Rouge
- Shy Guy as Robotnik Jr.
- Troff as Heavy
- Scoff as Bomb
- Larry Koopa as Bocoe
- Roy Koopa as Decoe
- Rosalina as Cosmo
- Lanky Kong as Emerl
- Klump as E-103 Delta
- Krusha as E-104 Epsilon
- Blue Toad as Chip
- Baby Mario as Christopher Thorndyke
- Donkey Kong Jr. as Timothy
- Baby Yoshi as Danny
- Mouser as Bokkun
- Kamek as Metal Sonic
- Goombas as Robots
- Morton Koopa Jr. as Ixis Naugus
- Smithy as Dr. Warpnik
- Funky Kong as Captain Rescue
- Luma as Hacker
- King K. Rool as Jet the Hawk
- King Boo as Storm the Albatross