Season 6

Season 6 featured the first ever UNIT story, The Invasion, which showcased the return of Brigadier Lethbridge-Stewart. It also featured the first official appearance of Time Lords and the as yet unnamed Doctor’s home planet. It also marked the end of the black-and-white era and the tenure of Patrick Troughton as the Second Doctor.

Main Cast Members

The DominatorsThe Mind RobberThe InvasionThe Krotons
The Seeds of Death The Space Pirates The War Games

The Dominators

The Mind Robber

The Invasion

The Krotons

Written by Robert Holmes

The TARDIS takes the Doctor, Jamie and Zoe to a world where they meet the Gonds who annually send two brilliant students into the Dynatrope to be the companions of the Krotons. [BBC*]

Novelised as “The Krotons” in 1985


  • Part 1 broadcast December 28, 1968 at 5.15pm on BBC1
  • Part 2 broadcast January 4, 1969 at 5.15pm on BBC1
  • Part 3 broadcast January 11,1969 at 5.15pm on BBC1
  • Part 4 broadcast January 18, 1969 at 5.15pm on BBC1


Notable Cast

“Eelek”, played by Philip Madoc


The Seeds of Death

05 The Seeds of Death

Written by Brian Hayles

The TARDIS arrives on Earth where T-Mat has revolutionised travel. However, the Ice Warriors have seized control and use T-Mat to distribute Martian seed pods across the world.


  • Part 1 broadcast January 25, 1969
  • Part 2 broadcast February 1, 1969
  • Part 3 broadcast February 8, 1969
  • Part 4 broadcast February 15, 1969
  • Part 5 broadcast February 22, 1969
  • Part 6 broadcast March 1, 1969


Notable Cast

“Commander Julian Radnor”, played by Ronald Leigh-Hunt


The Space Pirates

The War Games