Set after Sonic X, Sonic and his friends make a home near a small lake on Mobius. They always go
through trying to live together and Dr. Eggman watches them in his
Brad Pitt as Sonic. A blue hedgehog who runs at supersonic speeds, hence his name. In bed, he wears blue PJs with white stripes.
Nancy Cartwright as Tails. Sonic's best friend who has two tails. Often used for flying. In bed, he wears yellow footies.
as Knuckles. A red echidna who guards the Master Emerald and lives with
the gang. He is very tough and is one of Sonic's rivals, sometimes
blaming him for the mishaps they get in. In bed, he wears a red nightcap
and grey slippers.
as Amy Rose. A resident of the Hedgehog House and Sonic's self
appointed girlfriend. Cute and full of energy, she always gets the gang
out of trouble. She also knows Ella's recipes when she makes dinner for
them. In bed, she wears a pink and red nightgown.
Brad Pitt as Shadow. The Ultimate Life Form who escapes Earth
after a nuclear explosion. He built a 2x2 house near the Master Emerald.
In bed, he wears a black and red night mask.
as Vector. The leader of the Chaotix Detective Agency. He often sleeps
when the phone rings. In bed, he wears boxer briefs saying "I Heart
Steve Buscemi as Espio. A ninja who is a member of the CDA. In bed, he wears a gi with a black belt.
as Charmy. A hyperactive bee who is a member of the CDA. He often falls
into the lake having Espio save him. In bed, he wears yellow and black
as Mighty. An armadillo who's been walking Mobius for months since
Sonic and friends were teleported to Earth. He returns to the Chaotix in
one episode. In bed, he wears a black nightcap.
as Dr. Eggman. The main antagonist of the series. He is Sonic's
archnemesis and will stop at nothing to take over the world. In bed, he
wears red and white PJs.
as Silver. A hedgehog who is from a post-apocolyptic future. He seeks
Sonic's help to restore the past by finding the source of the explosion.
After that, he and Blaze move into the Hedgehog house.
Grey DeLisle as Blaze. Silver's partner who also seeked Sonic's help. She moved in with Silver and helps Amy with cooking.
James Arnold Taylor as Nack. A weasel who lives with Bean in a cave near the Hedgehog House.
Jeff Bennett as Bean. Jet's little brother and Nack's roommate.
Gary Chalk as Big. A giant cat who goes fishing. He lives with the gang.
Tara Strong as Cream.
Juile Kavner as Vanilla.
Frank Welker as Cheese, Froggy and Muttski
Kath Soucie as Bokkun.
Maurice LaMarche as Uncle Chuck.
Scott Menville as Gills the Fish.
See List of Sonic Sitcom episodes.