Season 15 (Doctor Who 1963)

It consisted of six serials comprised of twenty-six episodes. This season introduced K9 to the series and saw the departure of Leela. It was originally intended to include Terrance Dicks' story The Vampire Mutations but, due to a major BBC production of Dracula, it was postponed. It later became Season 18's State of Decay. To replace it, Dicks quickly scripted the season opener, Horror of Fang Rock. The season took a two week transmission break over the 1977 Christmas period, between the broadcast of part four of The Sun Makers and part one of Underworld.

As of 2024, this is the earliest season where the entire featured regular cast are still alive.

Television stories[[edit] | [edit source]]

#	Title	Writer	Episodes	Notes
1	Horror of Fang Rock	Terrance Dicks	4	First appearance of the Rutans.
2	The Invisible Enemy	Bob Baker Dave Martin	4	First appearance of K9. Return of the main TARDIS control room, and debut of the "grey design".
3	Image of the Fendahl	Chris Boucher	4	Final story to be written by Chris Boucher.
4	The Sun Makers	Robert Holmes	4
5	Underworld	Bob Baker Dave Martin	4	Contains the most copious use of colour separation overlay of any classic serial to compensate for a lack of budget to build physical sets.
6	The Invasion of Time	David Agnew, aka Anthony Read Graham Williams	6	First use of the Pseudonym of "David Agnew". Final appearance of Leela and K9 Mark I.

Cast[[edit] | [edit source]]

Guest[[edit] | [edit source]]

Adaptations and merchandising[[edit] | [edit source]]

Home media[[edit] | [edit source]]

VHS releases[[edit] | [edit source]]

Horror of Fang Rock (1998)
The Invisible Enemy (2002)
Image of the Fendahl (1993)
The Sun Makers (2001)
Underworld (2002)
The Invasion of Time (2000)
The Tom Baker Years (excerpts of all the stories) (1991)

DVD & Blu-ray releases[[edit] | [edit source]]

All serials of season 15 were released individually between 2005 and 2011.

Serial name	Number and duration of episodes	R2 release date	R4 release date	R1 release date
Horror of Fang Rock	4 × 25 min.	17 January 2005	7 April 2005	6 September 2005
The Invisible Enemy Only available as part of the K9 Tales box set with the Doctor Who spin-off K9 and Company in all regions.	4 × 25 min.	16 June 2008	4 September 2008	2 September 2008
Image of the Fendahl	4 × 25 min.	20 April 2009	4 June 2009	1 September 2009
The Sun Makers	4 × 25 min.	1 August 2011	1 September 2011	9 August 2011
Underworld Only available as part of the Myths and Legends box set in Regions 2 and 4. Only available individually in Region 1.	4 × 25 min.	29 March 2010	3 June 2010	6 July 2010
The Invasion of Time Available individually or in the Bred for War box set in Regions 2 and 4. Only available individually in Region 1.	6 × 25 min.	5 May 2008	3 July 2008	2 September 2008

Download/streaming availability[[edit] | [edit source]]

Serial name	Amazon Video	iTunes
Horror of Fang Rock (4 episodes)
The Invisible Enemy (4 episodes)	✓	✓
Image of the Fendahl (4 episodes)
The Sun Makers (4 episodes)	✓	✓
Underworld (4 episodes)	✓	✓
The Invasion of Time (6 episodes)