| Bailey, Bill |
The Whale (voice) |
| Chancellor, Anna |
Questular Rontok |
| Davis, Warwick |
Marvin |
| Def, Mos |
Ford Prefect |
| Deschanel, Zooey |
Trillian |
| Elliot, Su |
Pub Customer (as Su Eliott) |
| Freeman, Martin |
Arthur Dent |
| Fry, Stephen |
Narrator/The Guide (voice) |
| Griffiths, Richard |
Jeltz (voice) |
| Jackson, Dominique |
Fook |
| Jones, Simon |
Ghostly Image |
| Lennon, Thomas |
Eddie the Computer (voice) |
| Longhurst, Mark |
Bulldozer Driver |
| Macdonald, Kelly |
Reporter |
| Malkovich, John |
Humma Kavula |
| McNeice, Ian |
Kwaltz (voice) |
| Mirren, Helen |
Deep Thought (voice) |
| Nighy, Bill |
Slartibartfast |
| Pemberton, Steve |
Mr. Prosser/Additional Vogon Voices (also as The League of Gentlemen) |
| Rickman, Alan |
Marvin (voice) |
| Rockwell, Sam |
Zaphod Beeblebrox |
| Gatiss, Mark |
Additional Vogon Voices (as The League of Gentlemen) |
| Shearsmith, Reece |
Additional Vogon Voices (as The League of Gentlemen) |
| Stanley, Jack |
Lunkwill |
| Wilson, Mak |
Vogon Interpreter (voice) |
| Woodington, Albie |
Barman |
| Ball, Mason |
Creature Performer |
| Bennett, Sarah |
Creature Performer |
| Blackner, Danny |
Creature Performer |
| Burroughs, Hayley |
Creature Performer |
| Fay, Cecily |
Creature Performer (as Cecily Faye) |
| Freeman, Aron |
Creature Performer |
| Kay, Ian |
Creature Performer |
| McInness, Nikki |
Creature Performer |
| Nouri, Mohsen |
Creature Performer |
| Parham, Ollie |
Creature Performer |
| Plaskitt, Nigel |
Creature Performer |
| Bruce, Lynn Robertson |
Creature Performer (as Lynne Robertson Bruce) |
| Blake, Jerome |
Vogon Soldier |
| Bodrozic, Milo |
Vogon Soldier |
| Dawson, Martin |
Vogon Soldier |
| Ellis, Dan |
Vogon Soldier |
| Grindle, Steve |
Vogon Soldier |
| Hewitt, Art |
Vogon Soldier |
| Hibbs, Simon |
Vogon Soldier |
| Horseman, Rob |
Vogon Soldier |
| Lewis, Mike |
Vogon Soldier |
| Nathaniel, Paul |
Vogon Soldier |
| Perrin, Tim |
Vogon Soldier |
| Riley, Jessie |
Vogon Soldier |
| Stevens, Tucker |
Vogon Soldier |
| Stuart, Ashley |
Vogon Soldier |
| Uttley, Ben |
Vogon Soldier |
| Walker, Patrick |
Vogon Soldier |
| Wilding, Spencer |
Vogon Soldier |
| Wollen, William |
Vogon Soldier |
| Adams, Polly Jane |
London Citizen (uncredited) |
| Belson, Jane |
Extra (uncredited) |
| Donn, Ray |
Humma Worshiper (uncredited) |
| Gomez, John |
TV News Reporter (uncredited) |
| Valerio, Susie Gossling |
Daewoo Driver (uncredited) |
| Jennings, Garth |
Frankie mouse (voice) (uncredited) |
| Johnston, Rich |
Congregation (uncredited) |
| Lynn, Jim |
London citizen (uncredited) |
| Sallay, Elizabeth |
Woman at Counter (uncredited) |
| Schwartzman, Jason |
Gag Halfrunt (uncredited) |
| Sollé, Sean |
London citizen (uncredited) |
| Stevenson, Mark |
Native American (uncredited) |
| Thrift, James |
London Citizen (uncredited) |
| Wright, Edgar |
Deep Thought Technician (uncredited) |
