Doctor Doctor Who Guide
Last updated 31 May 2015


The Keys of Marinus

The Keys of Marinus

Series Episode Number: 26

World Premiere: Sat 16 May 1964 - 5:17pm BST [BBC One] (United Kingdom)
First Broadcast: Fri 15 Aug 2014 - 8:00pm EDT [Retro TV]
Running Time: 25 minutes 11 seconds

6.90 Million (UK)

Appreciation Index: 63 (UK)

Chart Position: 43 () (UK)

Recorded on Fri 24 Apr 1964 in Lime Grove D
Archive State: 16mm t/r
BBC Genome Project: see entry



The Doctor solves the murder mystery and finds the final missing key. With Ian now free, the travellers return to the island only to discover that Arbitan has been murdered.