Cast
- Thomas as Sonic
- Gordon as Shadow
- Percy as Espio
- Boco as Knuckles
- Duncan as Antoine
- Bertie as Tails
- Toby as Uncle Chuck
- Duck as Rotor
- Oliver as Big Grizz
- Stepney as Big Mike
- Toad as Lucas
- Diesel as Dr. Robotnik (AoSTH)/Dr. Eggman
- Diesel 10 as Dr. Robotnik (SatAM/SU)
- George as Snively
- Bill as Scratch
- Ben as Grounder
- Daisy as Sally
- Emily as Bunnie
- Rosie as Amy
- Lady as Cream
- Mavis as Breezie
- Terence as Robotnik Jr.
- Toad as Cheese
- Splatter as Bocoe
- Dodge as Decoe
- Arry as Sleet
- Bert as Dingo
- Stepney as Rocket the Sloth
- Billy as Griff
- Whiff as Manic
- Elizabeth as Rouge
- George as Coconuts
- Harold as Dulcy
- Boco as Ari
- Murdoch as Hawk
- Skarloey as Sonic Jr.
- Rheneas as Sarah
- Sir Handel as Timothy
- Peter Sam as Chris
- Rusty as Lupe
- Duncan as Mr. Tanaka
- Duke as Chuck Thorndyke
- Derek as Emerl
- Spencer as Sam Speed
- Arthur as Wes Weaselly
- Fergus as Chip
- Salty as Captain Rescue
- Harvey as Big
- Neville as Mighty
- Dennis as Hacker
- Hector as Vector
- Cranky as Sergant Doberman
- Stanley as Silver
- Hank as McMole
- Flora as Cosmo
- Hiro as Daukin
- Victor as The Station Square President
- Charlie as the Boy from AOSTH Christmas Blast
- Old Slowcoach as Blaze
- S.C. Ruffey as Quark
- Annie and Clarabel as Lily and her sister
- Rocky as Tikal's Dad
- The Troublesome Trucks as Various Robots
- Henrietta as Marine
- The Spiteful Breakvan as Metal Sonic
- Smudger as Bokun
- Proteus as Omega
- Terence as Charmy
- Elizabeth as Lindsey
- Jack as Gamma
- Alfie as Lilly's Brother
- Oliver (Pack) as Easy Eddie
- Max as Jet
- Monty as Storm
- Kelly as Danny
- Byron as Torch
- Ned as Wallace T. Ditso
- Isabella as Frances
- Patrick as Woodgang
- Buster as Sketch Lampoon
- Nelson as Nelson
- Trevor as Robot
- Bulstrode as Warpnik
- Jeremy as Ray
- D261 as Professor Gerald Robotnik
- Caroline as Tikal
- Madge as Sonia
- Colin as Alfred Buster
- Kevin as Hobodyke
- The Fat Controller as Sally's Dad
- Lady Hatt as Scarlet Garcia
- The Thin Controller as Mr. Steward
- Miss Jenny as Vanilla
- Mrs. Kydnley as Rosie the Nanny
- Stephen and Bridget as The Cat Kids from The Robot's Robot
- TFC's Mother as Ella
- Nancy as Sara
- Alice as Helen
- The Barber as Jerome Wise
- Alicia Botti as Queen Alena
- Freddie as Professor Von Schlemmer
- Mighty as Heavy
- Mac as Bomb
- Lorry 1 as Delta
- Lorry 2 as Beta
- Lorry 3 as Epilson
- Butch as The Excavator Driver
- Wilbert as Norman
- Sixteen as Dofus
- Ivo Hugh as Lucky
- Neil as Gardon
- Flying Scotsman as Zonchen
- Spamcan as Captain Whisker
- Bear as Chocola
- Old-Stuck-Up as Bark the Polar Bear
- Rex as Setter
- Mike as Kylok
- Bert as Professor Pickle
- Frank as The GUN Commandor
- Jock as Froggy
- Godred as Missile Wrist
- Culdee as Professor Pickle's Assitant
- Lord Harry as Phi
- Isabel as Lucinda
- Catherine as Dulcy's mom