Doctor Who (1963–1989)
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The Day of Darkness 

Tlotoxl's machinations result in both Susan and Ian being arrested.With the TARDIS once again trapped inside the tomb, the travelers' only hope for escape lies with Autloc and Cameca.


John Crockett


John Lucarotti (by)




Episode complete credited cast:
William Hartnell ... Dr. Who
William Russell ... Ian Chesterton
Jacqueline Hill ... Barbara Wright
Carole Ann Ford ... Susan Foreman
Keith Pyott ... Autloc
John Ringham ... Tlotoxl
Ian Cullen ... Ixta
Margot Van der Burgh Margot Van der Burgh ... Cameca
Walter Randall ... Tonila
Andre Boulay ... Perfect Victim
Dave Anderson Dave Anderson ... Aztec Captain (as David Anderson)


Ian finds a way out of the flooded tunnel and into the burial chamber. He is later arrested however when he tries to save Susan who is to be publicly punished just prior to the next sacrifice. Autloc comes to believe that Barbara is a false god, but she convinces him that Tlotoxl is plotting against them. Ian faces his foe for one last time as the Doctor builds a pulley to re-open burial chamber door and get access to the TARDIS. Written by garykmcd

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TV-PG | See all certifications »

Did You Know?


This episode takes place in Mexico in the 15th century. See more »


The cameras used to film this episode were incapable of zooming - instead they had to be physically moved closer to their subject. This is apparent when the camera lurches violently after hitting a piece of the scenery as it "zooms in" on Autloc following Ian's arrest in the garden. See more »


Dr. Who: Open it! Open it!
See more »


Featured in Designing 'The Aztecs' (2002) See more »

User Reviews

The Day of Darkness
21 May 2020 | by guswhovianSee all my reviews

Both Ian and Susan are arrested by Tlotoxl, and the Doctor must have Cameca's help to have them freed.

"The Day of Darkness" is a perfect closing episode for The Aztecs. The fight scene at the end benefits from being pre-filmed at Ealing.

The Aztecs is one of the greatest serials in the early days of the show. It's extremely well written, and the costumes, set design and music are perfect. The performances are great; Hartnell, William Russell and Jacqueline Hill are excellent. John Ringham makes one of the most memorable villains in the history of the show, and Keith Pyott and Margot Van Der Burgh deliver touching performances.

However, the camera work and directorial choices mar the serial. If only they'd gotten a better director than John Crockett...

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Release Date:

13 June 1964 (UK) See more »

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Sound Mix:


Aspect Ratio:

1.33 : 1
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