Byron/Scruff

Cast

 * Byron as Scruff
 * Kelly as Oliver
 * Harold as Peter Sam
 * Patrick as Hank
 * Jeremy as Diesel
 * Ned as Duck
 * Trevor as Kevin
 * Jack as Percy
 * Skarloey as Den
 * Rheneas as Dart
 * Alfie as Edward
 * Lord Harry (from RWS) as James
 * Sir Handel as Bash
 * Peter Sam as Dash
 * Nelson as Hiro (Nelson and Hiro are both black)
 * Elizabeth as Caroline
 * Isobella as Lady
 * Freddie as Rheneas
 * Madge as Flora
 * Fergus as Stanley
 * Rusty as Derek
 * Butch as Charlie
 * Den as Splatter
 * Dart as Dodge
 * Bertie as Rusty
 * Donald as Victor
 * Douglas as Stepney
 * Bill as Dennis
 * Ben as Henry
 * Salty as Fergus
 * Lorry 1 as George
 * Captain as Freddie
 * Stepney as Duke
 * Bash as Magnus (a made-up engine)
 * Dash as Myggen (a made-up engine)
 * Terence as Whiff
 * Caroline as Mavis
 * Bulstrode as The Spiteful Breakvan
 * Max as Arry
 * Monty as Bert
 * The Foreman as Skipper (from Skipper & Skeeto)
 * Miss Jenny as Molly Mouse (from Skipper & Skeeto)
 * Arthur as Billy
 * Toby as Doc (from The Little Engine That Could)
 * Stanley as Paxton
 * Murdoch as Salty
 * Cranky as Farnsworth (from The Little Engine That Could)
 * Daisy as Judge Judy the Diesel
 * The Spiteful Breakvan as Duncan
 * Derek as Pete (from The Little Engine That Could)
 * Scruffey as The Big City Engine (from RWS)
 * Lady as Daisy
 * Bulgy as Big Mickey (from TUGS)
 * Fungy Frog (from Skipper & Skeeto) as The Duke of Boxford
 * Henry as Budgie (from Budgie the Helicopter)
 * Flora as Belle
 * Lorry 2 as Bulstrode
 * Diesel 10 as Smudger
 * Toad as Bertie
 * George as Diesel 10
 * Duck as Theodore (from Theodore Tugboat)
 * Oliver as Hank (from Theodore Tugboat)
 * Hank as Northumberland (from Theodore Tugboat)
 * Thomas as George (from Theodore Tugboat)
 * Percy as Foduck (from Theodore Tugboat)
 * Edward as Digby (from Theodore Tugboat)
 * BoCo as Truro (from Theodore Tugboat)
 * Splatter as Zip (from TUGS)
 * Dodge as Zug (from TUGS)
 * Mavis as Emily (from Theodore Tugboat)
 * Gordon as Guysborough (from Theodore Tugboat)
 * Lady Hatt as Wendy (from South Park)
 * Sir Topham Hatt as Stan Marsh (from South Park)
 * Duncan as Zorran (from TUGS)
 * Smudger as Zebedee (from TUGS)
 * Stanley/No. 2 (from RWS) as Zak (from TUGS)
 * Godred (from RWS) as Spamcan (from RWS)
 * Buster as Arthur
 * Luke as Thomas
 * Merrick as Sir Handel
 * Caitlin as Madge
 * Paxton as Terence
 * Millie as Rosie
 * Bertram as Fire Chief (from TUGS)
 * Sally Seaplane (from TUGS) as Georgia (from The Little Engine That Could)
 * Mighty as Bill
 * Mac as Ben
 * Proteus as Ivo Hugh (from RWS)
 * Victoria & Helena (from RWS) as Molly and Milly (made up characters)