Thomas/Boj

Version 1

 * Percy as Boj
 * Emily as Mimi
 * Thomas as Pops
 * Rosie as Rupa
 * James as Denzil
 * Duck as Gavin
 * Lady as Mia
 * Fearless Freddie, Rheneas, Sir Handel, Duncan, Skarloey, Peter Sam as The Twitchlets
 * Murdoch as Dr. Bruce Woof
 * Molly as Mrs. Ruby Woof
 * Neville as Blair Bleet
 * Mavis as Bonnie Bleat
 * Belle as Julie Twitch
 * Gordon as Deepak Nibblit
 * Lady as Geeta Nibblit
 * Henry as Mr. Clive Cloppity
 * Rebecca as Miss. Claire Clippity
 * Luke as Hoj
 * Elizabeth as Bibi

Version 2

 * Percy as Boj
 * Ashima as Mimi
 * Thomas as Pops
 * Lexi as Rupa
 * Stanley as Denzil
 * Charlie as Gavin
 * Rosie as Mia
 * Jack, Alfie, Byron, Ned, Max, Monty as The Twitchlets
 * Harold as Dr. Bruce Woof
 * Mavis as Mrs. Ruby Woof
 * Gordon as Blair Bleet
 * Belle as Bonnie Bleat
 * Molly as Julie Twitch
 * Neville as Deepak Nibblit
 * Rosie as Geeta Nibblit
 * Sir Topham Hatt as Mr. Clive Cloppity
 * Lady Hatt as Miss. Claire Clippity
 * Peter Sam as Hoj
 * Emily as Bibi

Version 3

 * Sir Handel as Boj
 * Lady Hatt as Mimi
 * Sir Topham Hatt as Pops
 * Rosie as Rupa
 * Percy as Denzil
 * Thomas as Gavin
 * Lady as Mia
 * Dennis, Neville, Billy, Derek, Bertram, Duke as The Twitchlets
 * Henry as Dr. Bruce Woof
 * Mavis as Mrs. Ruby Woof
 * Gordon as Blair Bleet
 * Emily as Bonnie Bleat
 * Marion as Julie Twitch
 * Connor as Deepak Nibblit
 * Caitlin as Geeta Nibblit
 * Hiro as Mr. Clive Cloppity
 * Daisy as Miss. Claire Clippity
 * Timothy as Hoj
 * Isobella as Bibi