Invasion: UFO (1980) — Cast
Cast
| Deborah Grant | Simmonds |
| Vladek Sheybal | Doug |
| Michael Billington | Paul |
| Ed Bishop | Straker |
| George Sewell | Vivienne Freeman |
| David Warbeck | Fhloston Commander |
| Wanda Ventham | Col. Musgrove |
| Derren Nesbitt | Craig |
| Shane Rimmer | Behemoth Alien |
| Patrick Allen | Jorjie Turner |
Crew
| Gerry Anderson | Executive Producer |
| Derek Meddings | Visual Effects Director |
| Cyril Frankel | Director |
| Dennis Farnon | Music |
| David Hirsch | Creative Consultant |
| Robert Mandell | Creative Producer |
| Barry Gray | Music |
| John Scott | Music |
| Reg Hill | Producer |
| Jeremy Summers | Director |
| Gerry Anderson | Creator |
| Gerry Anderson | Director |
| Francis Monkman | Theme Song Performance |
| David Tomblin | Director |
| Francis Monkman | Music |
| David Tomblin | Writer |
| Karl Jenkins | Music |