Helen Mirren Deep Thought (voice)
Zooey Deschanel Trillian
Bill Nighy Slartibartfast
Sam Rockwell Zaphod Beeblebrox
John Malkovich Humma Kavula
Martin Freeman Arthur Dent
Anna Chancellor Questular Rontok
Thomas Lennon Eddie the Computer (voice)
Edgar Wright Deep Thought Technician (uncredited)
Alan Rickman Marvin (voice)
Kelly Macdonald Reporter
Mark Gatiss Additional Vogon Voices
Steve Pemberton Mr. Prosser
Jason Schwartzman Gag Halfrunt (uncredited)
Stephen Fry Narrator / The Guide (voice)
Warwick Davis Marvin
Richard Griffiths Jeltz (voice)
Spike Jonze Thanks
Reece Shearsmith Additional Vogon Voices
Simon Finney "A" Camera Operator
Jay Roach Producer
Ian McNeice Kwaltz (voice)
Yasiin Bey Ford Prefect
Mark Rhino Smith Pall Bearer (uncredited)
Douglas Adams Novel, Screenplay, Executive Producer
Bill Bailey The Whale (voice)
Simon Jones Ghostly Image
Garth Jennings Director
Spencer Wilding Vogon Soldier
Bobby Prince Unit Manager
Karey Kirkpatrick Screenplay
Nathaniel De'Lineadeus Special Effects Makeup Artist
Albie Woodington Barman
Chris Lyons Special Effects Makeup Artist
Jerome St. John Blake Vogon Soldier
Gary Barber Producer
Su Elliot Pub Customer
Roger Birnbaum Producer
Jonathan Glickman Producer
Cecily Fay Creature Performer
Duncan Jarman Prosthetic Makeup Artist
Bjørn Ole Schroeder ADR Supervisor
Peter Gleaves ADR Mixer
Jack Stew Foley Artist
Frank Walsh Supervising Art Director
Jemma Scott-Knox-Gore Contact Lens Technician
PJ Harling Visual Effects Editor
Jeffrey Chernov Production Executive
Mark Bakowski Digital Compositor
Peter Heslop Unit Production Manager
Charlotte-Rose Armstrong Assistant Costume Designer
John Marzano Aerial Director of Photography
Demetri Jagger Video Assist Operator
Phil Sims Art Direction
Joby Talbot Original Music Composer
Sammy Sheldon Costume Design
Matthew Smith Prosthetic Makeup Artist
Jim Dowdall Stunt Coordinator
Niven Howie Editor
Marcia Ross Casting
Deborah Simmrin Unit Publicist
Andy Bennett Stunts
Liz Tagg Hair Designer, Makeup Designer
Richard Baker Digital Compositors
Chris Rosewarne Propmaker
Ian Wilson Supervising Sound Editor
Celia Yau Key Costumer
Mark Appleby ADR Recordist
Paul Gooch Makeup Artist
Mike Valentine Underwater Camera
Susan Luciani Clapper Loader
Dean Clegg Assistant Art Director