Percy/Mavis

Cast

 * Percy as Mavis
 * Hiro as Molly (Hiro and Molly are both big tender engines)
 * Gordon as Derek
 * BoCo as Sir Handel
 * Duncan as Duncan
 * Billy as Emily (Billy and Emily are both end with ly)
 * James as Hiro (James and Hiro are both big tender engines)
 * Thomas as Bertie
 * Bill as Annie
 * Ben as Clarabel
 * Stepney as Flora (Stepney and Flora are both yellow)
 * Diesel 10 as Elizabeth
 * Bash as Arry
 * Dash as Bert
 * Ferdinand as Bear (from RWS) (Ferdinand and Bear are both blue)
 * Elizabeth as Diesel 10
 * Molly as Thomas
 * Oliver as Stanley
 * Rosie as Percy
 * Harold as Duck
 * Freddie as Rusty
 * Colin as Kevin
 * Norman as Bill
 * Paxton as Ben
 * Rheneas as Trevor
 * Charlie as Flynn
 * Fergus as Billy
 * Neville as Gordon
 * Whiff as Scruff (Whiff and Scruff are both green tank engines)
 * Arthur as Salty (Arthur and Salty are both red)
 * Dennis as James
 * The Old Engine (from RWS) as Bertram
 * Salty as Whiff
 * Den and Dart as Blister I and Blister II
 * Rusty as Hank
 * Olivia as Victor
 * Diesel as Daisy (Diesel and Daisy are both start with D)
 * Arry as Bash
 * Bert as Dash
 * Sir Topham Hatt as The Refreshment Lady
 * Lady Hatt as Herself
 * Jack as Albert (from RWS) (Jack and Albert are both red)
 * Toby as Fergus
 * Kevin as Catherine
 * Victor as Henry
 * George as Scruffey
 * Daisy as Diesel (Daisy and Diesel are both start with D)
 * Hector as Sixteen (from RWS)
 * Hank as Duke
 * Mallard (from RWS) as Lord Harry (from RWS)
 * Henrietta as Rosie
 * Cranky as Rocky
 * Smudger as Bulgy
 * Mr. Percival as The Vicar
 * Jeremy as Jeremy
 * Lady as Caroline
 * Troublesome Trucks as Troublesome Trucks
 * Scruffey as D261
 * D261 as The Spiteful Breakvan
 * Bertie as Harold
 * Mavis as Edward
 * Luke as Stepney
 * Annie and Clarabel as Themselves
 * Culdee (from RWS) as Jack
 * Wilfred (from RWS) as Alfie
 * Bear (from RWS) as Nelson
 * Albert (from RWS) as Oliver (Pack)
 * Splatter as Max
 * Dodge as Monty
 * Toby's Brother (from RWS) as Kelly
 * Sir Handel as Byron
 * Peter Sam as Ned
 * Catherine (from RWS) as Isobella
 * Spencer as Patrick
 * Stanley as Buster
 * The Foreman as Himself
 * Miss Jenny as Herself
 * Duck as Freddie
 * Ivo Hugh (from RWS) as Peter Sam
 * Frank (from RWS) as Dennis (Both are gray diesels)
 * Rocky as Cranky
 * Lord Harry (from RWS) as Hector
 * Emily as Oliver (Emily and Oliver are both green)
 * Murdoch as Hank (Both are big and friendly)
 * Harvey as Colin
 * Derek as Lady
 * Toad as Harvey
 * Edward as Hiro
 * Skarloey as Charlie
 * Spamcan (from RWS) as Smudger (Spamcan and Smudger are both start with S)
 * Bulstrode as Bulstrode
 * Flora as Belle
 * Scruff as Billy
 * Duchess of Hamilton (from RWS) as Madge
 * Green Arrow (from RWS) as Skarloey
 * Isabel (from RWS) as Old Slow Coach
 * Donald as Splatter
 * Douglas as Dodge (Douglas and Dodge are both start with Do)
 * Henry as Ferdinand
 * Trevor as Captain
 * Max as Lorry 1
 * Monty as Lorry 2
 * Bulgy as Lorry 3
 * Lorry 1 as Norman
 * Lorry 2 as Paxton
 * Lorry 3 as Sidney
 * Mighty as Den
 * Mac as Dart
 * Kelly as Butch
 * Bert (from RWS) as Luke
 * Owen as Himself
 * Merrick as Himself
 * Stephen as Winston
 * Terence as Stafford
 * Winston as Stephen
 * City of Truro as Connor
 * Millie as Caitlin
 * Caitlin as Millie