- Sonic as Thomas
- Knuckles as James
- Scratch as Bill
- Grounder as Ben
- Cream as Rosie
- Shadow as Hector
- King Acorn as Sir Topham Hatt
- Since Diesel does not appear in this episode, Shadow plays Hector.
- Rosie fears Hector the Horrid, but Amy Rose (who most Thomas and Sonic fans prefer for Rosie) fears almost nothing, and Cream fears many scary things. Because of this, Cream plays part for Rosie from Season 11 onwards.