Doctor Doctor Who Guide
Last updated 31 May 2015


Part Four

Part Four

Series Episode Number: 385

World Premiere: Sat 18 Jan 1975 - 5:31pm GMT [BBC One] (United Kingdom)
First Broadcast: Fri 29 Feb 1980 - 5:30pm CST [WTTW 11 Chicago]
Running Time: 24 minutes 29 seconds

9.00 Million (UK)

Appreciation Index: 51 (UK)

Chart Position: 30 () (UK)

Recorded on Fri 07 Jun 1974 in TC7



The Doctor races to avert a nuclear holocaust. The robot, distraught over killing its creator, takes Sarah hostage and goes on a rampage.


Characters hide uncredited
Doctor WhoTom Baker
Sarah Jane SmithElisabeth Sladen
Harry SullivanIan Marter
Brigadier Lethbridge-StewartNicholas Courtney
Sergeant BentonJohn Levene
Miss WintersPatricia Maynard
RobotMichael Kilgarriff
Professor KettlewellEdward Burnham
JellicoeAlec Linstead
(extra)Ray Knight (uncredited)
(extra)Allan Hinton (uncredited)
(extra)Allan Bioini (uncredited)
(extra)Bill Bingham (uncredited)
(extra)Brian Fellows (uncredited)
(extra)Christopher Carrington (uncredited)
(extra)Colin Hamilton (uncredited)
(extra)David Parker (uncredited)
(extra)David Patterson (uncredited)
(extra)Douglas Read (uncredited)
(extra)Fred Garratt (uncredited)
(extra)George Bayliss (uncredited)
(extra)Gordon Wall (uncredited)
(extra)Jack Parker (uncredited)
(extra)John Milner (uncredited)
(extra)Norman Colson (uncredited)
(extra)Norman Littlejohns (uncredited)
(extra)Peter Isley (uncredited)
(extra)Raymond Savage (uncredited)
(extra)Richard Martin (uncredited)
(extra)Roger Squires (uncredited)
(extra)Steve Rivers (uncredited)