Doctor Who: The Sea Devils

The story

The Doctor and Jo visit the Master in his high-security prison on an island off the south coast of England. The governor, Colonel Trenchard, says ships have been disappearing mysteriously at sea. The Doctor discovers that Trenchard and the Master are in league to contact the Sea Devils, a race of reptiles in hibernation in a base beneath the sea, who have been awoken by recent work on a nearby sea fort. The Master intends to use his new allies to help him conquer the world!

Cast & crew

Jon PertweeThe Doctor

Roger DelgadoThe Master

Katy ManningJo Grant

Edwin RichfieldCaptain Hart

Clive MortonTrenchard

June Murphy

June Murphy3rd Officer Jane Blythe

Donald SumpterCommander Ridgeway

David GriffinLt. Commander Mitchell

Hugh Futcher

Hugh FutcherHickman

Royston TicknerRobbins

Pat GormanSea Devil

Peter Forbes-RobertsonChief Sea Devil