 | Tom Baker als Tom |
 | Douglas Adams als Self |
 | Hans Peter Brandmo als Self |
| Ted Nelson als Self |
| Amanda Goodenough als Self |
| Fabrice Florin als Self |
| Steve Gano als Self |
| Mike Naimark als Self |
| Kristee Kreitman als Self |
| Kristine Hooper als Self |
| Brad DeGral als Self |
| Francis Crick als Self (archive footage) |
 | James Watson als Self (archive footage) |
| Michael Wahrman als Self |
| Douglas Adams | Writer |
| John Howarth | Director of Photography |
| Max Whitby | Director |
| Max Whitby | Producer |
| Paul Watson | Executive Producer |
| Peter Firstbrook | Executive Producer |
| Mat Irvine | Visual Effects Designer |
| Peter Parnham | Editor |
| Bella Russell | Music |
| Nick Somerville | Scenic Artist |
| Ian Simpson | Visual Effects |
| Nigel Beaham-Powell | Music |
| Mark Hobbins | Graphic Designer |
| Chris Prior | Graphic Designer |
| Nikki Barton | Graphic Designer |
| Robin Vinson | Graphic Designer |
| Hitesh Patel | Graphic Designer |
| Steve Gatland | Sound Recordist |
| Steve Hudson | Mix Technician |
| Sue Chapman | Production Assistant |
| Anne Varley | Production Assistant |
| Ted Barnes | Associate Producer |
