Cast[]
- Beresford as Thomas
- Merrick as Edward
- Duck as Henry
- Henry as Gordon (Henry and Gordon are both big)
- Arthur as James
- Colin as Percy
- Victor as Toby
- Timothy as Duck
- Bill as Donald
- Ben as Douglas
- Kevin as Oliver
- Cranky as Diesel (Cranky and Diesel are both rivals to Beresford and Thomas)
- Donald and Douglas as Bill and Ben
- Murdoch as BoCo
- Elizabeth as Daisy
- Flora as Mavis
- Ryan as Stepney
- Carly as Emily
- Ten Cents (from TUGS) as Bertie
- Terence as Salty
- Whiff as Harvey
- Splatter as Arry
- Dodge as Bert
- Theo as Fergus
- Peter Sam as Skarloey
- Rusty as Rheneas
- Duncan as Sir Handel
- Skarloey as Peter Sam
- Rheneas as Rusty
- Sir Handel as Duncan
- Bertram as Duke
- Proteus as Freddie
- The Japanese Engines as Mighty Mac
- James as Arthur
- Molly as Lady
- George as Diesel 10
- Arry as Splatter
- Bert as Dodge
- Sir Topham Hatt as Himself
- Salty as Terence
- Sunshine (from TUGS) as Trevor
- Billy as Toad
- Rocky as Derek
- Smudger as Bulgy
- Daisy as Elizabeth
- Diesel 10 as George
- Gordon as Murdoch
- Old Stuck Up (from RWS) as Spencer
- Belle as Caroline
- Diesel as Cranky
- The Spiteful Brakevan as Scruffey
- Mr. Percival as Himself
- Jeremy as Harold
- Lexi as Rosie
- Bulgy as Smudger
- Zorran (from TUGS) as Bulstrode
- Lady as Molly
- Thomas as Beresford
- Emily as Carly
- Murdoch as Hurricane