Helen Mirren Deep Thought (voice)
Zooey Deschanel Trillian
Bill Nighy Slartibartfast
Martin Freeman Arthur Dent
Sam Rockwell Zaphod Beeblebrox
Jason Schwartzman Gag Halfrunt (uncredited)
Yasiin Bey Ford Prefect
Thomas Lennon Eddie the Computer (voice)
Alan Rickman Marvin (voice)
John Malkovich Humma Kavula
Anna Chancellor Questular Rontok
Kelly Macdonald Reporter
Mark Gatiss Additional Vogon Voices
Edgar Wright Deep Thought Technician (uncredited)
Stephen Fry Narrator / The Guide (voice)
Jeffrey Chernov Production Executive
Richard Griffiths Jeltz (voice)
Warwick Davis Marvin
Reece Shearsmith Additional Vogon Voices
Simon Finney "A" Camera Operator
Ian McNeice Kwaltz (voice)
Steve Pemberton Mr. Prosser
Andy Bennett Stunts
Marcia Ross Casting
Jim Dowdall Stunt Coordinator
Alastair Sirkett Sound Designer, Sound Effects Editor
Niven Howie Editor
Spike Jonze Thanks
Tony Currie ADR Editor
Spencer Wilding Vogon Soldier
Jay Roach Producer
Garth Jennings Director
John Marzano Aerial Director of Photography
Todd Arnow Co-Producer
Bill Bailey The Whale (voice)
Tony Chance Storyboard Artist
Douglas Adams Novel, Screenplay, Executive Producer
Paul Edwards Steadicam Operator
Simon Jones Ghostly Image
Chris Lyons Special Effects Makeup Artist
Nikita Rae Hairstylist
Warren Lever Carpenter
Peter Heslop Unit Production Manager
Vanessa Baker ADR Voice Casting
Igor Jadue-Lillo Director of Photography
Cecily Fay Creature Performer
Bobby Prince Unit Manager
Jack Stew Foley Artist
Charlotte-Rose Armstrong Assistant Costume Designer
Peter Gleaves ADR Mixer
Demetri Jagger Video Assist Operator
Mark Hopkins Set Runner
Gary Barber Producer
Richard Whelan First Assistant Director
Nikki Bond Creature Performer
Andy Shelley Dialogue Editor
Karey Kirkpatrick Screenplay
Albie Woodington Barman
Mark Rhino Smith Pall Bearer (uncredited)
Matthew Smith Prosthetic Makeup Artist
Duncan Jarman Prosthetic Makeup Artist
Andy Thomson Art Direction
Jamie McCarter Animation Director
Caroline Hewitt Co-Producer
Ken Dailey Visual Effects Producer
Bjørn Ole Schroeder ADR Supervisor
Su Elliot Pub Customer
Mark Bakowski Digital Compositor
Frank Walsh Supervising Art Director
Jonathan Glickman Producer
Ian Kay Creature Performer
John Gamble First Assistant Camera