GG. The Underwater Menace

Season Four (continued) - 1966/1967

Story Editor: Gerry Davis
Writer: Geoffrey Orme
Produced by: Innes Lloyd
Director: Julia Smith
Designer: Jack Robinson
Incidental Music: Dudley Simpson
Fight Arranger: Derek Ware (uncredited)


The TARDIS materialises on what appears to be an extinct volcano. The Doctor and his crew are captured by a group of Atlanteans and taken below ground to the mythical city of Atlantis.

The Doctor, Polly, Ben and Jamie are almost sacrificed to the Goddess Ambo by being suspended over a pool of sharks. They are rescued by a deranged scientist Professor Zaroff. Zaroff has promised the Atlanteans that he can raise their world.

Zaroff's real intents are in fact to drain the ocean into the molten core of Earth, and the resulting steam would effectively split the planet in half.

The Doctor and his companions meet up with two shipwreck survivors, Sean and Jacko. Together they form a rebellion with the Fish People, and Zaroff is overthrown only by flooding the city. Only Zaroff fails to escape.

Regular Cast

  • Ben Jackson: Michael Craze
  • Polly Wright: Anneke Wills
  • Jamie McCrimmon: Frazer Hines

Guest Cast

  • Professor Zaroff: Joseph Furst
  • Damon: Colin Jeavons
  • Ara: Catherine Howard
  • Ramo: Tony Watson (1-3)
  • Lolem: Peter Stephens (1-5)
  • Jacko: Paul Aril (2-4)
  • Sean: PG Stephens (2-4)
  • Zaroff's Guard: Tony Handy (2-4)
  • Thous: Noel Johnson (2-4)
  • Overseer: Graham Ashley (2,4)
  • Damon's Assistant: Gerald Taylor (2)
  • Nola: Roma Woodnutt (3)
  • Zaroff's Guards: Alex Donald, Tony Douglas
  • People in Market: John Adams, Reg Cranfield, Peter Stockbridge, Mary Wheeler, Marguerite Young
  • Priests: Bill Burridge, Jimmy Mack
  • Overseer at Generating Station: Ralph Watson
  • Fish People: Cathy Ash, Derek Calder, Nigel Clayton, Alex Donald, Perin Lewis, Mary McMillan, Judy Nicholls. Tony Starr
  • Laboratory Assistants: Robin Scott, Alan Vicars
  • Medical Orderlies: Leonard Kingston, Denis Redwood, David Waterman
  • Atlantean Guards: Keith Ashley, Michael Earl, Ronald Gough, Dean Hardy, Derek Hunt, Sonny Willis
  • Atlantean Priests: John Adams, Laurence Archer, Reg Cranfield, Fred David, Alex Donald, Tony Douglas, Royston Farrell, Stanley Jacomb, Leonard Kingston, Gordon Lang, Bob Raymond, Denis Redwood, Darroll Richards, Peter Stockbridge, Hein Viljoen, David Waterman
  • Child Priests: Samuel Burleigh, Anthony Kemp, Edmund O'Dwyer, Gary O'Brien, Shane Younger
  • Miners: Keith Ashley, Royston Farrell, Dean Hardy, Philip Joste, Gordon Lang, Denis Redwood, Robin Scott, Alan Vicars, Hein Viljoen, David Waterman

Original broadcast on the BBC

Channel Title Date Viewers Rating
BBC 1 145. Episode 1 Saturday, January 14, 1967 5:50 PM - 6:15 PM 8.3M 48%
BBC 1 146. Episode 2 Saturday, January 21, 1967 5:50 PM - 6:15 PM 7.5M 46%
BBC 1 147. Episode 3 Saturday, January 28, 1967 5:50 PM - 6:15 PM 7.1M 45%
BBC 1 148. Episode 4 Saturday, February 4, 1967 5:50 PM - 6:15 PM 7.0M 47%


  • Ealing Television Film Studios
  • Riverside Studio 1

Outside Locations

  • Windspit Caves, Portland Bill, Dorset

Working Titles

Doctor Who Under the Sea


Doctor Who and the Fish People