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)

Lillias Walker - (Sister Lamont)

Robert Russell - (The Caber)

Angus Lennie - (Angus)

Tony Sibbald - (Huckle)

Hugh Martin - (Munro)

Bruce Wightman - (Radio Operator)

Bernard G. High - (Corporal)

Peter Symonds - (Soldier)

Keith Ashley, Ronald Gough - (Zygons)

When the Doctor, Sarah 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 it's the murderous tool of the Zygons, aliens intent on overpowering the planet.

The Doctor and his companions must find a way to defeat the deadly Loch Ness Monster and its controllers, but the Zygons have the terrifying power to change shape and the Doctor is in grave danger when he finds that his friends and allies are not always what they seem...

Working Title:

The Zygons, The Secret of Loch Ness.

Things to look for:

• Coming Soon! 

The Doctor Who Archive:

The complete unedited reel exists.

Bloopers:

Coming Soon

Title Information:

• Terror of the Zygons
• Omnibus format
• UK PAL - Released November 1988
• BBC Video cat.#4186

Title Information:

• Terror of the Zygons
• Episodic format
• UK PAL - Released August 1999
• BBC Video cat.#6774

Not yet released on DVD.

Not yet released on Audio.

Title Information:

• Doctor Who and the Terror of the Zygons
• Written by Terrance Dicks
• Manufactured by Target
• Published 1976
• No.40 in the Target, Doctor Who Library.

Title Information:

• Doctor Who and the Terror of the Zygons

• Written by Terrance Dicks

• Manufactured by Target

• Published 1978

• No.40 in the Target, Doctor Who Library.

Title Information:

• Doctor Who and the Terror of the Zygons

• Written by Terrance Dicks

• Manufactured by Target

• Published 1993

• No.40 in the Target, Doctor Who Library.