

Jo Grant's actress spills tea on rubber sea monsters and Jon Pertwee's yacht obsession.
Cast and crew discuss the making of The Sea Devils, from the television series Doctor Who.
Acting
Katy Manning's irrepressible charm and behind-scenes anecdotes.
Practical Effects
Glorious rubber Sea Devil costumes that terrified 1972 children.
Director
George Williams
Trivia, insights & behind the scenes
The Sea Devils location shoot at HMS Reclaim nearly ended in actual disaster when Katy Manning's visibility in the costume was near-zero.
This 1972 serial marked Doctor Who's deliberate pivot toward ecological and military-industrial themes, with the Sea Devils as ancient Earth natives displaced by human naval expansion — surprisingly pointed subtext for a story featuring costumed reptiles.