Zooey Deschanel Trillian
Martin Freeman Arthur Dent
Bill Nighy Slartibartfast
Helen Mirren Deep Thought (voice)
Jason Schwartzman Gag Halfrunt (uncredited)
Anna Chancellor Questular Rontok
Sam Rockwell Zaphod Beeblebrox
Alan Rickman Marvin (voice)
John Malkovich Humma Kavula
Yasiin Bey Ford Prefect
Edgar Wright Deep Thought Technician (uncredited)
Kelly Macdonald Reporter
Warwick Davis Marvin
Mike Valentine Underwater Camera
Mark Gatiss Additional Vogon Voices
Bill Bailey The Whale (voice)
Shaun Cobley Assistant Camera
Stephen Fry Narrator / The Guide (voice)
Ian McNeice Kwaltz (voice)
Marcia Ross Casting
Reece Shearsmith Additional Vogon Voices
Andy Shelley Dialogue Editor
Niven Howie Editor
Garth Jennings Director
Tony Currie ADR Editor
Spike Jonze Thanks
Deborah Simmrin Unit Publicist
Simon Finney "A" Camera Operator
Nikita Rae Hairstylist
Joey Coughlin Electrician
Steve Pemberton Mr. Prosser
Jay Roach Producer
Thomas Lennon Eddie the Computer (voice)
Ian Kay Creature Performer
Todd Arnow Co-Producer
Bjørn Ole Schroeder ADR Supervisor
Andy Bennett Stunts
Laurie Sparham Still Photographer
Richard Griffiths Jeltz (voice)
Simon Jones Ghostly Image
Peter Heslop Unit Production Manager
Igor Jadue-Lillo Director of Photography
Bobby Prince Unit Manager
Spencer Wilding Vogon Soldier
Demetri Jagger Video Assist Operator
Cecily Fay Creature Performer
Nikki Bond Creature Performer
Karey Kirkpatrick Screenplay
Albie Woodington Barman
Douglas Adams Novel, Screenplay, Executive Producer
Jamie McCarter Animation Director
Alastair Sirkett Sound Designer, Sound Effects Editor
Su Elliot Pub Customer
Jeffrey Chernov Production Executive
Jim Dowdall Stunt Coordinator
Phil Sims Art Direction
Gary Barber Producer
Paul Edwards Steadicam Operator
Peter Gleaves ADR Mixer
Daniel May Art Direction
Vanessa Baker ADR Voice Casting
Mark Rhino Smith Pall Bearer (uncredited)
PJ Harling Visual Effects Editor
Chris Lyons Special Effects Makeup Artist
Mark Bakowski Digital Compositor
Jack Stew Foley Artist
Joby Talbot Original Music Composer
Angus Bickerton Visual Effects Supervisor
Duncan Jarman Prosthetic Makeup Artist
Paul Drenning ADR Mixer
John Gamble First Assistant Camera
Simon Jones Transportation Coordinator