Peter Kay
Big Chris (voice)
Richard Briers
Roobarb/Custard (voice)
Frank Welker
Scooby-Doo (voice)
Ken Barrie
Postman Pat (voice)
Neil Morrissey
Bob the Builder (voice)
Ringo Starr
Thomas the Tank Engine (voice)
Roy Skelton
Zippy / George (voice)
Jane Horrocks
Fifi Forget-Me-Not (voice)
Carole Boyd
Sara Clifton / Mrs. Goggins (voice)
Tim Whitnall
Teletubbies narrator / Flowertots characters (voice)
Keith Wickham
The Fat Controller (voice)
Oliver Postgate
Bagpus (voice)
Brian Cant
Miss Lovelace (voice)
Jimmy Hibbert
Ben (Flowerpot Man)/ Stretchy (voice)
Bernard Cribbins
Alderney / Orinoco / Wellington (voice)
Malcolm Lord
Bungle
Marc Silk
Flowertots / Molecom (voice)
Sylvia Anderson
Lady Penelope (voice)
Kulvinder Ghir
Ajay
Jonathan Kydd
Paddington Bear (voice)
John Thomson
Bill (Flowerpot Man)
David Graham
Brains / Parker / Thunderbirds (voice)
Martin Clunes
Stripy (voice)
Pui Fan Lee
Po
Mark Heenehan
Tinky Winky (voice)
Marcello Magni
Pingu (voice)
Simon Shelton
Tinky-Winky (voice)
John Simmit
Dipsy (voice)
Nikky Smedley
Laa-Laa (voice)
Brenda Longman
Soo
Steven Kynman
Fireman Sam
Charlotte Spencer
Angelina Mouseling (voice)
Casey Kasem
Shaggy Rogers (voice) (uncredited)