Cast
- Thomas as Sonic
- Percy as Tails
- James as Knuckles
- Emily as Amy Rose
- Edward as Antoine
- Mavis as Bunnie Rabbot
- Molly as Sally Acorn
- Duck as Rotor the Walrus
- Toby as Uncle Chuck
- Diesel 10 as Dr. Eggman
- Bulgy as Snively
- Bill as Scratch
- Ben as Grounder
- George as Coconuts
- Sir Topham Hatt as King Acorn
- Lady Hatt as Queen Acorn
- Mr. Percival as Mr. Stewart
- Arthur as Mr. Tanaka
- BoCo as Ari the Ram
- Harold as Dulcy
- Terence as Omochao
- Kevin as Griff
- Rosie as Cream the Rabbit
- Toad as Cheese
- Madge as Sonia the Hedgehog
- Whiff as Manic the Hedgehog
- Elizabeth as Breezie
- Stepney as Rocket the Sloth
- Oliver as Lucas
- Stanley as Silver the Hedgehog
- Harvey as Big the Cat
- Thumper as Froggy
- Arry as Sleet
- Bert as Dingo
- Gordon as Vector the Crocodile
- Miss Jenny as Vanilla the Rabbit
- Henry as Espio the Chameleon
- Mighty as Mighty the Armadillo
- Mac as Ray the Flying Squirrel
- Billy as Charmy Bee
- Diesel as Shadow the Hedgehog
- Daisy as Rouge the Bat
- Bertie as Robotnik Jr.
- Donald as Heavy
- Douglas as Bomb
- Splatter as Bocoe
- Dodge as Decoe
- Lady as Cosmo
- Derek as Emerl
- Duncan as E-123 Omega
- Rusty as E-102 Gamma
- Max as E-103 Delta
- Monty as E-104 Epsilon
- Fergus as Chip
- Old Slow Coach as Blaze the Cat
- Peter Sam as Christopher Thorndyke
- Duke as Chuck Thorndyke
- Colin as Timothy
- Sir Handel as Danny
- Alice as Helen
- Isobella as Frances
- Neville as Trevor
- Smudger as Bokkun
- The Spiteful Breakvan as Metal Sonic
- Sixteen as E-100 Alpha/Zero
- Wilbert as Norman
- Annie and Clarabel as Lily and her Sister
- Henrietta as Marine
- Mrs. Kyndley as Rosie
- Hiro as Athair
- Gremlin as Muttski
- Farmer McColl as Sergeant Doberman
- The Foreman as Diamond Stadium Owner
- Freddie as Professor von Schlemmer
- Butch as the Excavator Driver
- Dowager Hatt as Ella
- Nancy as Sara
- Alicia Botti as Queen Aleena
- Flora as Princess Elise
- Proteus as Lily's Brother
- Charlie as Kylok
- Skarloey as Sonic Jr.
- Rheneas as Chocola
- Troublesome Trucks as Robots
- Narrow Gauge Coaches as Chaos
- Coaches as Flickies
- Bertram as Ixis Naugus
- D261 as Professor Gerald Robotnik
- Victor as Sam Speed
- Ivo Hugh (from RWS) as E-77 Lucky
- Jack as Cyrus
- Alfie as Wallace A. Ditso
- Byron as Torch
- Nelson as Nelson Thorndyke
- Ned as Sketch Lampoon
- Oliver (Pack) as Easy Eddie
- Buster as Albert Butler
- Patrick as Chef Wolfgang Puke
- Kelly as Wes Weasley
- Old Stuck-Up as E-101 Beta
- Lorry 1 as Bean
- Lorry 2 as Bark
- Lorry 3 as E-105 Zeta
- The Angry Policeman as Eggman Nega
- The Small Controller as President
- The Barber as Dr. Qwark
- The Stationmaster's Wife as Momma Robotnik
- The Refreshment Lady as Scarlet Garcia
- The Duke of Boxford as Mantu
- The Duchess of Boxford as Lindsay Thorndyke
- Duchess of Hamilton as Shahra
- Mallard as Erazor Djinn
- Frank as Eggrobo
- Mike as Spelunk the Mole
- Isabel as Lucinda
- Culdee as Professor Pickle's Assistant
- Jeremy as Edgar Eagle
- Bulstrode as Dr. Warpnik
- S.C.Ruffey as Cluck
- Spamcan as Captain Whisker
- Catherine as Wave the Swallow
- Victoria as Topaz
- Neil as Gardon
- Flying Scotsman as Zonshen
- TFC's Cat as Chao
- The Chinese Dragon as Evil Dragon
- Murdoch as Hawk
- Hank as McMole
- Trevor as Robot
- Cranky as Jerome Wise
- Caroline as Tikal
- Rocky as Pachacamac
- Salty as Captain Rescue
- The Works Diesel (from the RWS) as Big Griz
- Bear (from the RWS) as Big Mike
- Dennis as Hacker
- Spencer as Jet the Hawk
- Hector as Storm the Albatross