Invaders from the Deep (1981)

When aquatic aliens plot to take over the planet, the world aquanaut security patrol are called in to battle the aliens.

Cast

Captain Troy Tempest / Solaster Leader
D Don Mason
Lieutenant George Lee 'Phones' Sheridan / Corda / WSP Commander
Robert Easton
Commander Sam Shore / Sub-Lieutenant John Horatio Fisher / King Titan / Gadeth / Power Plant technician / Chidora / Maritamis / Fragil
Ray Barrett
Lieutenant Atlanta Shore / Milly Carson / Marineville Tracking Station #2
Lois Maxwell
Admiral Henry Carson / Marin / Nucella / Marineville Tracking Station #1 / Jet Squadron Leader / Turata
David Graham

Crew

Director
D David Elliott
Director
J John Kelly
Director
David Lane
Director
D Desmond Saunders
Writer
A Alan Fennell
Creator
Gerry Anderson
Producer
Gerry Anderson
Producer
R Reg Hill