Season 12

Season 12 of Doctor Who ran between 28 December 1974 and 10 May 1975. It starred Tom Baker as the Fourth Doctor, Elisabeth Sladen as Sarah-Jane Smith and Ian Marter as Harry Sullivan. The season opened with Robot and concluded with Revenge of the Cybermen.

Overview
It consisted of five serials and twenty episodes, and would be the shortest season of the show until season 22 in 1985. The season was shortened by a decision by the BBC to move Terror of the Zygons, originally intended as the finale, to the start of Season 13. This was intended to allow the next season to begin earlier and let Doctor Who better compete against the soon-to-debut Space: 1999.

All the stories in this season were interconnected, several forming a loose story arc relating to Space Station Nerva. The Cybermen returned to the series for the first time since The Invasion. Genesis of the Daleks, a story which introduced Davros and showed the creation of the Daleks, is one of the most famous of all Doctor Who serials.

It was also the last Doctor Who season to have a December/January start until the Peter Davison era. This is the first and, so far, only season to not feature the TARDIS control console.

This is the first season since Season 5 that Malcolm Hulke did not write for.

Cast

 * Doctor Who - Tom Baker
 * Sarah Jane Smith - Elisabeth Sladen
 * Harry Sullivan - Ian Marter

Recurring

 * Brigadier Lethbridge-Stewart - Nicholas Courtney
 * Warrant Officer Benton - John Levene

Guest

 * Hilda Winters - Patricia Maynard
 * K1 Robot - Michael Kilgarriff
 * Professor Kettlewell - Edward Burnham
 * Jellicoe - Alec Linstead
 * Vira - Wendy Williams
 * Noah - Kenton Moore
 * Rogin - Richardson Morgan
 * Wirrn Operators - Stuart Fell, Nick Hobbs
 * Vural - Donald Douglas
 * Krans - Glyn Jones
 * Erak - Peter Walshe
 * Styre and The Marshal - Kevin Lindsay
 * Davros – Michael Wisher
 * Nyder – Peter Miles
 * Gharman – Dennis Chinnery
 * Sevrin - Stephen Yardley
 * Ronson - James Garbutt
 * Kavell - Tom Georgeson
 * Dalek Voices - Roy Skelton
 * Stevenson - Ronald Leigh-Hunt
 * Lester - William Marlowe
 * Kellman - Jeremy Wilkin
 * Vorus - David Collings
 * Tyrum - Kevin Stoney
 * Cyberleader - Christopher Robbie

Stories set during this season

 * PROSE: A Device of Death (immediately after Genesis of the Daleks)

VHS releases

 * Robot (1992)
 * The Ark in Space (1989) (edited movie format)
 * The Ark in Space (1994)
 * The Sontaran Experiment/Genesis of the Daleks (1991)
 * Genesis of the Daleks (2001)
 * Revenge of the Cybermen (1983/1984) (edited movie format)
 * Revenge of the Cybermen (1999)
 * The Tom Baker Years (1992) (extracts from each of the stories)

DVD & Blu-ray releases
All serials of season 12 were released individually on DVD between 2002 and 2013. The complete season was upscaled in 1080i50 high definition and released on Blu-ray as Doctor Who: The Collection - Season 12 in the UK on 2 July 2018. Due to authoring issues, replacement discs for two of the serials were issued by BBC Video later that year.

It was later released in Australia on 1 August 2018 and was released in the US under the title Doctor Who: Tom Baker - Complete Season One on 19 June 2018. This is, to date, the only classic Doctor Who complete season Blu-ray set released in the US before the UK. BBC Video also released replacement discs for this set.

A standard edition of the box set was released in the UK on 31 May 2021.

Download/streaming availability
BritBox is available only in the US. iTunes stores carry Doctor Who serials in Australia, Canada, France, Germany, the UK and US, unless stated otherwise. Amazon Video in the US streams classical Doctor Who through BritBox channel.

Novels

 * Doctor Who and the Giant Robot
 * Doctor Who and the Ark in Space
 * Doctor Who and the Sontaran Experiment
 * Doctor Who and the Genesis of the Daleks
 * The Revenge of the Cybermen

Scriptbooks

 * In 2004, BBC Books published a hardcover, annotated collection of all the scripts from Season 12.