Cast & crew
UFO: Red alert... Attack on Earth! (1971)
Directed by Cyril Frankel, David Tomblin, Jeremy Summers
Cast
| Deborah Grant | Simmonds |
| Vladek Sheybal | Doug |
| Ed Bishop | Straker |
| Wanda Ventham | Nathalie Lake |
| Dolores Mantez | Barry |
| Gabrielle Drake | Teniente |
| Michael Billington | Paul |
| David Collings | Daniel |
| Colin Gordon | Albert Kropp |
Crew
| Gerry Anderson | Executive Producer |
| Cyril Frankel | Director |
| David Tomblin | Director |
| Jeremy Summers | Director |
| Gerry Anderson | Creator |
| David Tomblin | Script |
| Barry Gray | Music |
| Terence Feely | Script |
| Tony Barwick | Script |
| John Barry | Music |