- Ardal O'Hanlon
- Robbie the Reindeer
- Jane Horrocks
- Donner / Arctic Fox (voice)
- Steve Coogan
- Blitzen
- Paul Whitehouse
- Prancer
- Harry Enfield
- Old Jingle
- Jeff Goldblum
- White Rabbit
- David Attenborough
- Self
- Ricky Gervais
- Penguin
- Rob Brydon
- Prison Guard
- Jeremy Dyson
- Viking 4
- Sean Hughes
- Tapir
- Natalie Imbruglia
- Koala
- Mark Gatiss
- Viking
- Steve Pemberton
- Viking
- Reece Shearsmith
- Viking
- Alistair McGowan
- Des Yeti / Alan Snowman (voice)
- Ben Stiller
- Robbie the Reindeer
- Britney Spears
- Donner
- Jerry Stiller
- Old Jingle
- Jim Belushi
- Tapir / Little Magnus (voice) (as James Belushi)
- Brad Garrett
- Prancer / Viking #3 (voice)
- Leah Remini
- Koala
- James Woods
- Prison Guard / Head Viking (voice)
- Hugh Grant
- Blitzen
- Dick Enberg
- Des Yeti
- Dan Dierdorf
- Alan Snowman
- Grey Griffin
- Arctic Fox / Female Viking (voice) (as Grey DeLisle)
- Rob Paulsen
- Viking #2 / Viking #4 (voice)
