Cast[]
- Duck as Thomas
- Green Arrow (from RWS) as Edward
- Flying Scotsman as Henry
- The Big City Engine (from RWS) as Gordon
- Mallard (from RWS) as James
- Oliver as Percy
- City of Truro as Toby
- Thomas as Duck
- Henry & Gordon as Donald & Douglas
- Percy as Oliver
- George as Diesel (George and Diesel are both rivals to Duck and Thomas)
- Skarloey & Rheneas as Bill & Ben
- Duke as BoCo
- Mavis as Daisy (Mavis and Daisy are both diesel engines)
- Daisy as Mavis
- Toby as Stepney
- Lady as Emily
- Ferdinand as Bertie
- Bertram as Salty
- Kevin as Harvey
- Max & Monty as Harry & Bert
- Edward as Fergus
- Culdee (from RWS) as Skarloey
- Wilfred (from RWS) as Rheneas
- Ernest (from RWS) as Sir Handel
- Shane Dooiney (from RWS) as Peter Sam
- Bert (from RWS) as Rusty
- Lord Harry/Patrick (from RWS) as Duncan
- Proteus as Duke
- Jock (from RWS) as Freddie
- Blister Twins (from RWS) as Mighty Mac
- Stepney as Arthur
- Emily as Lady
- Diesel as Diesel 10
- Harry & Bert as Splatter & Dodge (Harry & Bert work for Diesel; just like Splatter & Dodge work for Diesel 10)
- Jem Cole as Sir Topham Hatt
- The Refreshment Lady as Lady Hatt
- Byron as Terence
- Fergus as Trevor
- Alfie as Toad
- Murdoch as Derek
- Spencer as Bulgy
- Isabella as Elizabeth
- Diesel 10 as George
- Derek as Murdoch
- Class 40 as Spencer
- Henrietta as Caroline
- Colin as Cranky
- Sidney as Scruffey
- The Mountain Railway Manager as Mr. Percival
- Jeremy as Harold
- Madge as Rosie
- Troublesome Trucks as The Trucks
- Godred (from RWS) as Smudger
- The Spiteful Brake Van as Bulstrode
- Harold as Jeremy
- Rosie as Molly
- Whiff as Stanley
- Annie & Clarabel as Themselves
- Stanley as Whiff
- Peter Sam as Scruff
- Frank (from RWS) as Dennis
- Butch as Rocky
- Scruffey as The Spiteful Brake Van
- Molly as Madge
- Bulgy as Class 40
- Norman, Paxton & Sidney as The Horrid Lorries
- Charlie as Billy
- Billy as Charlie
- Bill, Ben & BoCo as The Logging Locos
- Splatter & Dodge as Den & Dart
- Lorry 1 as Norman
- Lorry 2 as Paxton
- Lorry 3 as Sidney
- Flora as Belle
- Rusty as Flynn