Season 15 of Doctor Who ran between 3 September 1977 and 11 March 1978. It starred Tom Baker as the Fourth Doctor, Louise Jameson as Leela and John Leeson as K9 Mark I. The season opened with Horror of Fang Rock and concluded with The Invasion of Time.

Overview Edit

It consisted of six serials and 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.

Television stories Edit

# Title Writer Episodes Notes
1 Horror of Fang RockTerrance Dicks4First appearance of the Rutans; Due to Louise Jameson's complaints about wearing uncomfortable contact lenses, Leela's eye colour gets changed from brown to blue so Jameson no longer needs the lenses. A US rebroadcast on 22 November 1987 was infamously interrupted in an event later dubbed the Max Headroom broadcast signal intrusion incident.
2 The Invisible EnemyBob Baker
Dave Martin
4First appearance of K9 Mark I. The main TARDIS control room returns to use after being remodelled between seasons.
3 Image of the FendahlChris Boucher4Debut of Leela's second outfit; K9's role is minimal in this serial because writers did not know if he would become a regular character as of yet.
4 The Sun MakersRobert Holmes4Much of the story is influenced by Robert Holmes's dislike of Inland Revenue taxation and his inspiration from Adrian Berry's novel, The Iron Sun: Crossing The Universe Through Black Holes.
5 UnderworldBob Baker
Dave Martin
4Contains 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 TimeDavid Agnew, aka
Anthony Read
Graham Williams
6Final appearance of Leela and K9 Mark I; introduction of K9 Mark II. Reappearance of the Sontarans.

Cast Edit

Guest Edit

Adaptations and merchandising Edit

Home media Edit

VHS Edit

DVD Edit

All serials of season 15 were released individually in 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
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

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)

Novels Edit

External links Edit

Community content is available under CC-BY-SA unless otherwise noted.