• Thomas as James
  • Daisy as Aunt Sponge
  • Belle as Aunt Spiker
  • Gordon as The Magic Man
  • Rosie as The Little Girl
  • Toby as Mr. Grasshopper
  • Emily as Miss Spider
  • Mavis as Mrs. Ladybug
  • James as Mr. Centipede
  • Edward as Earthworm
  • Molly as Glowworm
  • Troublesome Trucks as The Seagulls
  • Diesel as The Mechanical Shark
  • Jack and Elizabeth as James' parents
  • Spencer as The Pirate Captain
  • The Narrow Gauge Engines as The Skeleton Pirates
  • Diesel 10 as The Rhino
  • Henry as Beat Cop