Diesel 10/Harold

Cast

 * Diesel 10 as Harold
 * Old Stuck-Up (from RWS) as Hank
 * Diesel as BoCo
 * Spamcan (from RWS) as Derek
 * Toby as Bulgy
 * George as Jeremy
 * James as Salty
 * BoCo as Bertie
 * Splatter as Bill
 * Dodge as Ben
 * Derek as Trevor
 * Henry as S.C.Ruffey
 * Max as Donald
 * Monty as Douglas
 * Duck as Henry
 * Madge as Isobella
 * Daisy as Madge
 * Fergus as Whiff
 * Rosie as Mavis
 * Skarloey as Duck
 * Kevin as Colin
 * Buster as Toby
 * Sir Handel as Splatter
 * Peter Sam as Dodge
 * Stepney as Stanley
 * Jack as Bertie
 * Alfie as Trevor
 * Byron as Arry
 * Ned as Bert
 * Kelly as Victor
 * Patrick as Spencer
 * Nelson as City of Truro
 * Buster as Hiro
 * Bash as Den
 * Dash as Dart
 * Flynn as Puffa (from TUGS)
 * Flora as Rosie
 * Thomas as Smudger
 * Arry as Donald
 * Bert as Douglas
 * Bertram as Ferdinand
 * Rheneas as Oliver
 * Rocky as Stafford
 * Gordon as Oliver
 * James as Patrick
 * Caroline as Annie
 * The Spiteful Breakvan as Percy
 * Hiro as D261
 * D261 as Duncan
 * Elizabeth as Belle
 * Hector as Colin
 * Diesel as Lorry 2
 * Godred (from RWS) as Winston
 * Harvey as Cranky
 * Toad as Oliver (Pack)
 * Cranky as Lorry 1
 * Thomas as Jeremy
 * Emily as Lady
 * Percy as Harold
 * Belle as Emily
 * Diesel 10 as The Spiteful Breakvan
 * Old Stuck-Up (from RWS) as Captain
 * Skarloey as Whiff
 * Rheneas as Scruff
 * Sir Handel as Hank
 * Peter Sam as Neville
 * Rusty as Butch
 * Duncan as Bulgy
 * Duke as Dennis
 * Freddie as Salty
 * Boomer (from TUGS) as Rocky
 * Daisy as Clarabel
 * Burke (from TUGS) as Bill
 * Blair (from TUGS) as Ben
 * Mrs. Percival as Miss Jenny
 * Mr. Percival as The Foreman
 * Stepney as Jack
 * Billy as Alfie
 * Sidney as Nelson
 * Victor as Ned
 * Den as Hector
 * Dart as Scruffey
 * Norman as Fred Pelhay (from RWS)
 * Scruff as Charlie
 * Edward as Byron
 * Murdoch as Freddie
 * Spencer as Murdoch
 * George as Smudger
 * Caitlin as Catherine (from RWS)
 * Mavis as Molly
 * Lady as Victoria (from RWS)
 * Neville as Rusty
 * Luke as Harvey
 * Paxton as Billy
 * Mighty as Paxton
 * Mac as Mac
 * Terence as Norman
 * Hercules (from TUGS) as Bulstrode
 * Molly as Caroline
 * Bear (from RWS) as Arthur
 * Lorry 1 as Mighty
 * Lorry 2 as Mac
 * Lorry 3 as Ferdinand
 * Charlie as Bash
 * Dennis as Dennis
 * Kevin as Sixteen (from RWS)
 * Stephen as Merrick
 * Connor as Owen
 * Stafford as Tiger Moth
 * Winston as Toad
 * Merrick as Boulder
 * Owen as Big City Engine (from RWS)
 * Old Slow Coach as Pinknose (a fan-made character)
 * Catherine (from RWS) as Shelly the Pink Freight Car (a fan-made character)
 * Randy Marsh (from South Park) as The Vicar of Wellsworth
 * Sharon Marsh (from Southy Park) as Mrs. Kyndley
 * The Foreman as Mr. Percival
 * Miss Jenny as Mrs. Percival
 * Fergus as Proteus
 * Isabel (from RWS) as Elizabeth
 * Dulcie (from RWS) as Isobella
 * Wilbert (from RWS) as Stanley
 * Butch as Terence
 * Bertram as Kelly
 * Porter as Porter
 * Thumper as Thumper
 * Bulstrode as Edward
 * Zorran (from TUGS) as Gordon
 * Captain Zero (from Salty's Lighthouse) as Sir Topham Hatt
 * Captain Star (from Salty's Lighthouse) as Lady Hatt