Characters
- Thomas
- James
- Oliver
- Harvey
- Porter
- Ryan
- Nia
- Daisy
- Marion
- Mike
- Judy and Jerome
- Jack
- Alfie
- Oliver the Excavator
- Max and Monty
- Brenda
- Darcy
- Cranky
- Carly
- Jenny Packard
- Rex (not named; does not speak)
- Bert (not named; does not speak)
- Edward (cameo)
- Duck (cameo)
- Salty (cameo)
- Toad (cameo)
- Dexter (cameo)
- Bulgy (cameo)
- Big Mickey (cameo)
- The Thin Clergyman (cameo)
- The Fat Clergyman (cameo)