Leonardo (Teenage Mutant Ninja Turtles (2012)) as Sonic the Hedgehog
Randall Boggs (Monsters, Inc.) as Petey Piranha
Metal Beak (Legend of the Guardians: The Owls of Ga'Hoole) as Ridley
Kludd (Legend of the Guardians: The Owls of Ga'Hoole) as Meta-Ridley
Robo Dog (Looney Tunes: Back in Action) as Rayquaza
Leonard (The Angry Birds Movie) as Porky
Kron (Dinosaur) as Galleom
Bruton (Dinosaur) as Duon
Jafar (Aladdin (2019)) as Tabuu
The Toad (Flushed Away) as Ancient Minister
Frogs (Flushed Away) as Primids
Wii U & 3DS Cast:[]
Odette (Leap!) as Rosalina
Chicken Little as Luma
Voltar (League of Super Evil) as Bowser Jr.
Doktor Frogg, The Cougar, Red Menace, Humongo, Skullossus, Doomageddoon and Commander Chaos (League of Super Evil) as Larry, Wendy, Morton, Iggy, Roy, Lemmy and Ludwig
Daffy Duck (Looney Tunes) as Greninja
Justin (Justin and the Knights of Valour) as Robin (Male)
Talia (Justin and the Knights of Valour) as Robin (Female)
Peni Parker (Spider-Man: Into the Spider-Verse) as Lucina
Jonathan (Hotel Transylvania) as Corrin (Male)
Mavis (Hotel Transylvania) as Corrin (Female)
Dolly (Toy Story 3) as Palutena
Stinky Pete (Toy Story 2) as Dark Pit
Patrick (SpongeBob SquarePants) as Alph
Mr. Krabs and Squidward (SpongeBob SquarePants) as Winged Pikmin
Norman Babcock (ParaNorman) as Villager (Male)
Coraline Jones (Coraline) as Villager (Female)
Lucy Wilde (Despicable Me 2) as Wii Fit Trainer (Female)
Gru (Despicable Me) as Wii Fit Trainer (Male)
Sprig Plantar (Amphibia) as Little Mac
Walter Beckett (Spies in Disguise) as Shulk
Peanuts Characters as Mii Fighters
Paco (Ferdinand) as Duck-Hunt (Dog)
Peng (Duck, Duck Goose!) as Duck-Hunt (Duck)
Blu (Rio) as Mega Man
Mickey Mouse (Disney) as Pac-Man
Mordecai (Regular Show) as Ryu
Rodney Copperbottom (Robots) as Cloud Strife
Mirabel Madrigal (Encanto) as Bayonetta
Duke Weaselton (Zootopia) as Nabbit
Jessie (Toy Story 2) as Viridi
Hop Pop Plantar (Amphibia) as Doc Louis
Killian (Spies in Disguise) as Mumkhar
Nigel (Rio) as Yellow Devil
Ares (Next Gen) as Master Core
Ultimate Cast:[]
Lila Rossi (Miraculous Ladybug) as Dark Samus
Li Na (Wish Dragon) as Daisy
Rigby (Regular Show) as Ken
June Bailey (Wonder Park) as Inkling Girl
Kubo (Kubo and the Two Strings) as Inkling Boy
Buster Moon (Sing) as Simon
Eddie (Sing) as Richter
Captain Gutt (Ice Age: Continental Drift) as King K. Rool
Manolo Sánchez (The Book of Life) as Chrom
Gidget (The Secret Life of Pets) as Isabelle
Sylvester (Looney Tunes) as Incineroar
Sakura Kinomoto (Cardcaptor Sakura) as Pokémon Trainer (Female)
Ted Wiggins (The Lorax) as Joker
Vlad Vladikoff (Horton Hears a Who!) as Piranha Plant
Flynn Rider (Tangled) as Byleth (Male)
Rapunzel (Tangled) as Byleth (Female)
Boog (Open Season) as Banjo
Kevin (Up) as Kazooie
Nathan Adams (Yo-kai Watch) as The Hero
Jack Frost (Rise of the Guardians) as Terry
Violet Parr (The Incredibles) as Min Min
Rango as Steve
Beans (Rango) as Alex
Rattlesnake Jake (Rango) as Zombie
Bad Bill (Rango) as Enderman
Ratchet (Robots) as Sephiroth
Sci-Twi (My Little Pony: Equestria Girls) as Pyra
Molly McGee (The Ghost and Molly McGee) as Mythra
Dominic Toretto (The Fast and the Furious) as Kazuya