Harold/Bert

Cast

 * Harold as Bert
 * Hank as Diesel
 * BoCo as Diesel 10 (BoCo and Diesel 10 are both big diesels)
 * Derek as Hector (Derek and Hector are both big and strong)
 * Bulgy as Bulgy
 * Jeremy as Duncan
 * Salty as The Spiteful Brakevan
 * Bertie as Smudger
 * Bill as Splatter
 * Ben as Dodge
 * Trevor as Arry
 * S.C. Ruffey as Edward
 * Donald as Den (Donald and Den are both start with D)
 * Douglas as Dart (Douglas and Dart are both start with D)
 * Henry as Victor
 * Isobella as Molly (Isobella and Molly are both yellow)
 * Madge as Annie (Madge and Annie are both end with e)
 * Whiff as Kevin
 * Rosie as Elizabeth
 * Duck as Rusty
 * Toby as Derek
 * Colin as Rocky (Colin and Rocky are both cranes)
 * Splatter as Oliver (Splatter and Oliver are both end with er)
 * Dodge as Thomas
 * Stanley as Trevor
 * Jack as Stanley
 * Alfie as Charlie (Alfie and Charlie are both end with ie)
 * Byron as Whiff
 * Ned as Billy (Ned and Billy are both orange)
 * Kelly as Bertie
 * Patrick as Percy (Patrick and Percy are both start with P)
 * Nelson as Bertram
 * Buster as Proteus
 * Bash as Bash
 * Dash as Dash
 * Puffa (from TUGS) as Hiro (Puffa and Hiro are both black)
 * Flora as Caroline
 * Smudger as Henry (Smudger and Henry are both green)
 * Arry as Donald
 * Bert as Douglas
 * Randy Marsh (from South Park) as Cranky
 * Ferdinand as Flynn (Ferdinand and Flynn are both start with F)
 * Oliver as Fergus
 * Rocky as Colin (Rocky and Colin are both cranes)
 * Gordon as Salty
 * James as James
 * Caroline as Emily
 * The Spiteful Brakevan as Scruffey (The Spiteful Brakevan and Scruffey are both start with S)
 * Hiro as Byron
 * D261 as D261
 * Elizabeth as Lady
 * Hector as Sir Topham Hatt (Hector and Sir Topham Hatt are both black)
 * Diesel as George
 * Godred (from RWS) as Jeremy
 * Harvey as Toad
 * Toad as Harvey
 * Cranky as Gordon
 * Thomas as Tiger Moth (Thomas and Tiger Moth are both start with T)
 * Emily as Clarabel
 * Percy as Harold
 * Belle as Daisy
 * Diesel 10 as Duck (Diesel 10 and Duck are both start with D)
 * Old Stuck-Up (from RWS) as Bulstrode
 * Skarloey as Jack
 * Rheneas as Alfie
 * Sir Handel as Murdoch
 * Peter Sam as Ned
 * Rusty as Kelly
 * Duncan as Patrick
 * Duke as Nelson
 * Freddie as Buster
 * Boomer (from TUGS) as Oliver (Pack)
 * Daisy as Madge (Daisy and Madge are both green)
 * Burke & Blair (from TUGS) as Max & Monty
 * Mrs. Percival as Miss Jenny
 * Mr. Percival as The Foreman
 * Stepney as Sir Handel (Stepney and Sir Handel are both start with S)
 * Billy as Scruff
 * Sidney as Dennis
 * Victor as Neville
 * Den, Dart and Norman as The Horrid Lorries
 * Scruff as Peter Sam (Scruff and Peter Sam are both green)
 * Paxton as Rheneas
 * Mighty as Mighty
 * Mac as Mac
 * Terence as Ferdinand
 * Hercules (from TUGS) as Captain
 * Molly as Flora (Molly and Flora are both yellow)
 * Bear (from RWS) as Terence
 * Lorry 1 as Bill
 * Lorry 2 as Ben
 * Lorry 3 as Norman
 * Charlie as Paxton
 * Dennis as Sidney
 * Scuttlebutt Pete (from TUGS) as Butch
 * Annie as Mavis
 * Clarabel as Rosie
 * Connor as Edward (Connor and Edward are both blue)
 * Spencer as Spencer
 * Murdoch as Arthur
 * Neville as BoCo
 * Luke as Stepney
 * George as Toby
 * Kevin as Luke
 * Winston as Stafford
 * Merrick as Stephen
 * Owen as Hank
 * Isabel (from RWS) as Millie
 * Catherine (from RWS) as Caitlin
 * Sharon marsh (from Southy Park) as Lady Hatt
 * The Foreman as Mr. Percival
 * Miss Jenny as Mrs. Percival
 * Mavis as Isobella
 * Fergus as Skarloey