Spencer and Tiger Moth/Spencer Proves a point is the 38th episode of Big City Engine the Tender Engine and Friends and the 9th episode of Season 2.
- Spencer as Percy
- Mallard as Toby (Does not speak)
- Big City Engine as Thomas
- Tiger Moth as Harold
- The Coaches as Troublesome Trucks
- Stewie Griffin (from Family Guy) as Sir Topham Hatt (Mentined)