Arthur Dent
Martin Freeman
Zaphod Beeblebrox
Sam Rockwell
Trish McMillan/Trillian
Zooey Deschanel
Ford Prefect
Mos Def
Slartibartfast
Bill Nighy
Marvin the Paranoid Android
Warwick Davis
Marvin the Paranoid Android
Alan Rickman
Humma Kavula
John Malkovich
Questular
Anna Chancellor
Deep Thought (voice)
Helen Mirren
Pub Customer
Su Elliott
Narrator / The Guide (voice)
Stephen Fry
Fook
Dominique Jackson
Eddie the Computer (voice)
Thomas Lennon
The Whale (voice)
Bill Bailey
Ghostly Image
Simon Jones
Bulldozer Driver
Mark Longhurst
Prosser
Steve Pemberton
Lunkwill
Jack Stanley
Sperm Whale
Bill Bailey
Barman
Albie Woodington
Vogon Minion
Mason Ball
Vogon Captain
William Todd-Jones
Stunt Builder
Barry Dowden
Jeltz (voice)
Richard Griffiths
Kwaltz (voice)
Ian McNeice
Additional Vogon Voices (as League of Gentlemen)
Mark Gatiss
Additional Vogon Voices (as The League of Gentlemen)
Reece Shearsmith
Deep Thought Technician
Edgar Wright
Reporter
Kelly Macdonald
Gag Halfrunt
Jason Schwartzman
Vogon Soldier
Spencer Wilding
Vogon Interpreter [Voice]
Mak Wilson
Vogon Soldier
Martine Dawson
Vogon Soldier
Simon Hibbs
Vogon Soldier
Mike Lewis
Vogon Soldier
Tim Perrin
Vogon Soldier
Milo Bodrozic
Vogon Soldier
Dan Ellis
Vogon Soldier
Patrick Walker
Vogon Soldier
William Wollen