Ardal O'Hanlon
Robbie (voice)
Acting
Jane Horrocks
Donner (voice)
Acting
Gillian Anderson
Queen Vorkana (voice)
Acting
Keira Knightley
Em (voice)
Acting
Ozzy Osbourne
Vicar (voice)
Acting
Michael Palin
Gariiiiiii (voice)
Acting
Paul Whitehouse
Prancer (voice)
Acting
Sean Hughes
Tapir (voice)
Acting
Harry Enfield
Old Jingle (voice)
Acting
Graham Norton
Computer (voice)
Acting
Russell Brand
Earth Guardian (voice)
Acting
Shane Richie
Trooper #1 (voice)
Acting
Ross Kemp
Trooper #2 (voice)
Acting