Doctor Who: Terror of the Zygons (1975)

Plot Summary

When the Doctor, Sarah Jane and Harry arrive in Scotland, having received an urgent request for assistance from the Brigadier, they discover that the mysterious force which has destroyed three oil rigs has left giant teeth marks on the wreckage. The mystery deepens, leading them to the shores of Loch Ness where they find that the legendary monster really does exist – and is the murderous tool of the Zygons, aliens intent on overpowering the planet. The Doctor, his companions and UNIT must find a way to defeat the deadly Loch Ness Monster and its controllers, but the Zygons have the terrifying power to change shape. The Doctor's life has never been in more danger, as the line between allies and enemies is tested to the very limit...

Full Cast & Characters

Tom Baker

The Doctor

Elisabeth Sladen

Sarah Jane Smith

Ian Marter

Harry Sullivan

Nicholas Courtney

Brigadier Lethbridge-Stewart

John Levene

RSM Benton

John Woodnutt

Duke of Forgill / Broton

Keith Ashley

Zygon

Ronald Gough

Zygon

Lillias Walker

Sister Lamont

Angus Lennie

Angus

Tony Sibbald

Huckle

Hugh Martin

Munro

Director & Crew

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