Season 6

The sixth season of Doctor Who ran between 10th August 1968 and 21st June 1969. It features the first UNIT story, The Invasion. It also marked the end of the black-and-white era and the tenure of Patrick Troughton as the Second Doctor. It consisted of 7 serials, and 44 episodes.

Stories

 * The Dominators (5 episodes)
 * The Mind Robber (5 episodes)
 * The Invasion (8 episodes)
 * The Krotons (4 episodes)
 * The Seeds of Death (6 episodes)
 * The Space Pirates (6 episodes)
 * The War Games (10 episodes)

Main Cast

 * The Doctor - Patrick Troughton
 * Jamie McCrimmon - Frazer Hines
 * Zoe Heriot - Wendy Padbury

Stories set during this season

 * Future Imperfect (during Episode 5 The Mind Robber)
 * VD Aliens and Predators (between The Invasion and The Krotons)
 * Involvement in ST UPVC (between The Invasion and The Krotons)
 * Involvement in PDA The Colony of Lies (between The Invasion and The Krotons)
 * TN Foreign Devils (between The Invasion and The Krotons)
 * VD Vortex of Fear (between The Seeds of Death and The Space Pirates)
 * PDA The Final Sanction (between The Seeds of Death and The Space Pirates)
 * ST Please Shut the Gate (between The Seeds of Death and The Space Pirates)
 * ST Constant Companion (between The Seeds of Death and The Space Pirates)
 * PDA The Indestructible Man  (between The Seeds of Death and The Space Pirates)
 * MA The Menagerie (between The Space Pirates and The War Games)
 * VD Fallen Angel (between The Space Pirates and The War Games)
 * Involvement in EDA The Eight Doctors (during episode 9 of The War Games)
 * ST War Crimes (during episode 10 of The War Games)

Other information
Novels and other media contend that further adventures of the Second Doctor occurred during Season 6B prior to his regeneration into the Third Doctor as seen in Season 7 of the television series.