Zooey Deschanel Trillian
Ian McNeice Kwaltz (voice)
Helen Mirren Deep Thought (voice)
Bill Nighy Slartibartfast
Sam Rockwell Zaphod Beeblebrox
Martin Freeman Arthur Dent
Yasiin Bey Ford Prefect
Alan Rickman Marvin (voice)
John Malkovich Humma Kavula
Thomas Lennon Eddie the Computer (voice)
Jason Schwartzman Gag Halfrunt (uncredited)
Anna Chancellor Questular Rontok
Kelly Macdonald Reporter
Stephen Fry Narrator / The Guide (voice)
Edgar Wright Deep Thought Technician (uncredited)
Mark Gatiss Additional Vogon Voices
Jim Dowdall Stunt Coordinator
Warwick Davis Marvin
Richard Griffiths Jeltz (voice)
Gary Barber Producer
Simon Finney "A" Camera Operator
Andy Bennett Stunts
Marcia Ross Casting
Niven Howie Editor
Alastair Sirkett Sound Designer, Sound Effects Editor
Steve Pemberton Mr. Prosser
Spike Jonze Thanks
Reece Shearsmith Additional Vogon Voices
Tony Currie ADR Editor
Garth Jennings Director
Bjørn Ole Schroeder ADR Supervisor
Patrick Walker Vogon Soldier
Todd Arnow Co-Producer
Bill Bailey The Whale (voice)
Jay Roach Producer
Peter Heslop Unit Production Manager
John Marzano Aerial Director of Photography
Richard Whelan First Assistant Director
Sammy Sheldon Costume Design
Warren Lever Carpenter
Tony Chance Storyboard Artist
Douglas Adams Novel, Screenplay, Executive Producer
Mike Valentine Underwater Camera
Simon Jones Ghostly Image
Charlotte-Rose Armstrong Assistant Costume Designer
Nikita Rae Hairstylist
Ken Dailey Visual Effects Producer
Angus Bickerton Visual Effects Supervisor
Igor Jadue-Lillo Director of Photography
Cecily Fay Creature Performer
Bobby Prince Unit Manager
Jack Stew Foley Artist
Celia Yau Key Costumer
Iain Lawrence Assistant Director
Chas Bain Focus Puller
John Gamble First Assistant Camera
Mark Rhino Smith Pall Bearer (uncredited)
Paul Edwards Steadicam Operator
Shaun Cobley Assistant Camera
Mark Hopkins Set Runner
Nikki Bond Creature Performer
Andy Shelley Dialogue Editor
Vanessa Baker ADR Voice Casting
Tim Dean Libra Head Technician
Karey Kirkpatrick Screenplay
Jemma Scott-Knox-Gore Contact Lens Technician
Deryn Stafford Production Coordinator
Jon Hollis Title Designer
Chris Lyons Special Effects Makeup Artist
Albie Woodington Barman
Spencer Wilding Vogon Soldier
Dean Clegg Assistant Art Director