Cast[]
- Isobella as Thomas
- Belle as Edward
- Flying Scotsman (from RWS) as Henry
- Murdoch as Gordon
- Flynn as James
- Lady as Percy
- Millie as Toby
- Flora as Duck
- Pip (from RWS) as Donald
- Emma (from RWS) as Douglas
- Mavis as Oliver
- Judge Judy the Diesel as Diesel
- Annie as Bill
- Clarabel as Ben
- Ferdinand as BoCo
- Bulgy as Daisy
- Oliver as Mavis
- Nigel (a cancelled character) as Stepney
- Jack as Emily
- Caroline as Bertie
- George as Diesel 10
- Max as Splatter
- Monty as Dodge
- Daisy as Bulgy
- Duncan as Elizabeth
- Diesel 10 as George
- Gordon as Murdoch
- Big City Engine (from RWS) as Spencer
- Bertie as Caroline
- Luke as Rosie
- Timothy as Whiff