Sodor Park is a Thomas/South Park parody and a nice version of South Park.
- Diesel as Cartman: Diesel is a fat big engine.
- Thomas as Stan: Thomas is a cheeky engine.
- James as Kyle: James is Thomas' best friend.
- Percy as Kenny: Percy is broken in every episode. When he is broken, Thomas and James cry, "Oh my god, they broke Percy! You Old Square Wheels"
- Isobella as Liane Cartman: Isobella is Diesel's mother.