The Adventures of Sonic the Hedgehog/The Little Engine That Could

Version One (With Thomas/Adventures of Sonic the Hedgehog)

 * Cosmo as Tillie
 * Snuffy (from A Troll in Central Park) as Georgia
 * Sonic the Postman as Farnsworth
 * Alan (from A Troll in Central Park) as Pete
 * Sonic the Cowboy as Jebediah
 * Sonic the Space Police as Tower
 * Sonic the Order Pizza as Rollo
 * Tails the Order Pizza as Jeeper the Toy Monkey
 * Miss Possum as Grumpella
 * Alice (from Alice in Wonderland) as Missy
 * Perky as himself
 * Handy Pandy as himself
 * Strech as himself
 * Sonic the Chefs as Eric
 * Chip as Chip
 * Mama Robotnik as Jill
 * King Dedede (from Kirby) as The big wolf
 * Dinah (from Alice in Wonderland) as the little wolf
 * Snively as The Eagle
 * The Voice inside the cave as himself
 * Doc as himself

Version Two (With The Adventures of Sonic the Hedgehog/The Little Engine That Could)

 * Sonic as Tillie
 * Cream as Georgia
 * Knuckles as Farnsworth
 * Scratch as Pete
 * Grounder as Doc
 * Danny (from Cats Don't Dance) as Jebediah
 * Dr. Robotnik/Dr. Eggman as Tower
 * Woolie (from Cats Don't Dance) as Rollo
 * Manic as Jeeper the Toy Monkey
 * Sonia as Grumpella
 * Sally as Missy
 * Mr. Smee (from Peter Pan) as Perky
 * Rotor as Handy Pandy
 * And more