 | Don Mason als Captain Troy Tempest / 1st WSP Commander (voice) |
 | Robert Easton als Lieutenant 'Phones' Sheridan / X-2-Zero / Aquaphibian 1 (voice) |
 | Ray Barrett als Commander Shore / Sub-Lieutenant Fisher / Titan (voice) |
 | Lois Maxwell als Lieutenant Atlanta Shore (voice) |
 | David Graham als Aquaphibian 2 / Aquaphibian 3 (voice) |
| David Elliott | Director |
| John Kelly | Director |
| Alan Pattillo | Director |
| Barry Gray | Music |
| Reg Hill | Producer |
| Gerry Anderson | Creator |
| Gerry Anderson | Writer |
| Sylvia Anderson | Writer |
| Alan Fennell | Writer |
| Dennis Spooner | Writer |
| Derek Meddings | Visual Effects |
| John Read | Director of Photography |
| Gerry Anderson | Producer |