The Sea Devils

062 – The Sea Devils
Doctor Who serial
A Sea Devil creeps up on the Doctor
Cast
Doctor Jon Pertwee (Third Doctor)
Companion Katy Manning (Jo Grant)
Others Roger Delgado — The Master Clive Morton — Trenchard Declan Mulholland — Clark Hugh Futcher — Hickman Brian Justice — Wilson Terry Walsh — Barclay Stanley McGeagh — Drew Royston Tickner — Robbins Neil Seiler — Radio Operator Martin Boddey — Walker Edwin Richfield — Captain Hart June Murphy — 3rd Officer Jane Blythe Norman Atkyns — Rear Admiral Donald Sumpter — Commander Ridgeway David Griffin — Lt. Commander Mitchell Brian Vaughan — Lt. Commander Watts Christopher Wray — Ldg. Seaman Lovell Alec Wallis — Ldg. Telegraphist Bowman Eric Mason — CPO Smedley John Caesar — CPO Myers Colin Bell — CPO Summers Rex Rowland — A/B Girton Peter Forbes-Robertson — Chief Sea Devil Pat Gorman — Sea Devil
Production
Directed by	Michael E. Briant
Written by	Malcolm Hulke
Script editor	Terrance Dicks
Produced by	Barry Letts
Executive producer(s)	None
Incidental music composer	Malcolm Clarke
Production code	LLL
Series	Season 9
Length	6 episodes, 25 minutes each
Originally broadcast	26 February – 1 April 1972
Chronology
← Preceded by Followed by → The Curse of Peladon The Mutants

Doctor Who and the Sea-Devils

Author	Malcolm Hulke
Cover artist	Chris Achilleos
Series	Doctor Who book: Target novelisations
Release number	54
Publisher	Target Books
Publication date	17 October 1974
ISBN

The Sea Devils is the third serial of the ninth season of the British science fiction television series Doctor Who, which was first broadcast in six weekly parts from 26 February to 1 April 1972. It was written by Malcolm Hulke and directed by Michael E. Briant. The serial is notable as the first appearance of the Sea Devils and features extensive location filming in cooperation with the Royal Navy, as well as an experimental electronic score by Malcolm Clarke.

In the serial, the Doctor (Jon Pertwee) and his assistant Jo Grant (Katy Manning) visit the Doctor's nemesis the Master (Roger Delgado) in his island prison and encounter the Sea Devils, the aquatic cousins of the Silurians.

The Doctor and Jo visit the Master, now held in captivity on a small island prison, after being captured by UNIT (at the conclusion of The Dæmons). The Master is being held indefinitely and is the only prisoner. He is watched by CCTV and the island is patrolled by armed guards, trained to resist the Master's hypnotic powers, and even protected by minefields. He claims to have reformed but refuses to reveal the location of his TARDIS.