Robbie and Donner's wedding is interrupted when Donner is kidnapped by aliens. Robbie saves the day again though with the help of his friends and an alien crystal.
Ardal O'Hanlon
as Robbie (voice)
Jane Horrocks
as Donner (voice)
Gillian Anderson
as Queen Vorkana (voice)
Keira Knightley
as Em (voice)
Ozzy Osbourne
as Vicar (voice)
Michael Palin
as Gariiiiiii (voice)
Paul Whitehouse
as Prancer (voice)
Sean Hughes
as Tapir (voice)
Harry Enfield
as Old Jingle (voice)
Graham Norton
as Computer (voice)
Russell Brand
as Earth Guardian (voice)
Shane Richie
as Trooper #1 (voice)
