Doctor Who

Season 21

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The Twin Dilemma, the first story with Colin Baker as the Sixth Doctor, aired last in the season. This season saw the departure of companions Tegan, Turlough and Kamelion and introduced Peri. Most episodes were the traditional twenty-five minute length. However, due to coverage of the 1984 Winter Olympics, Resurrection of the Daleks was re-edited before airing and shown as two forty-five minute episodes.
24 Episodes
  • Warriors of the Deep (1)
    Warriors of the Deep (1)Episode 1
  • Warriors of the Deep (2)
    Warriors of the Deep (2)Episode 2
  • Warriors of the Deep (3)
    Warriors of the Deep (3)Episode 3
  • Warriors of the Deep (4)
    Warriors of the Deep (4)Episode 4
  • The Awakening (1)
    The Awakening (1)Episode 5
  • The Awakening (2)
    The Awakening (2)Episode 6
  • Frontios (1)
    Frontios (1)Episode 7
  • Frontios (2)
    Frontios (2)Episode 8
  • Frontios (3)
    Frontios (3)Episode 9
  • Frontios (4)
    Frontios (4)Episode 10
  • Resurrection of the Daleks (1)
    Resurrection of the Daleks (1)Episode 11
  • Resurrection of the Daleks (2)
    Resurrection of the Daleks (2)Episode 12
  • Planet of Fire (1)
    Planet of Fire (1)Episode 13
  • Planet of Fire (2)
    Planet of Fire (2)Episode 14
  • Planet of Fire (3)
    Planet of Fire (3)Episode 15
  • Planet of Fire (4)
    Planet of Fire (4)Episode 16
  • The Caves of Androzani (1)
    The Caves of Androzani (1)Episode 17
  • The Caves of Androzani (2)
    The Caves of Androzani (2)Episode 18
  • The Caves of Androzani (3)
    The Caves of Androzani (3)Episode 19
  • The Caves of Androzani (4)
    The Caves of Androzani (4)Episode 20
  • The Twin Dilemma (1)
    The Twin Dilemma (1)Episode 21
  • The Twin Dilemma (2)
    The Twin Dilemma (2)Episode 22
  • The Twin Dilemma (3)
    The Twin Dilemma (3)Episode 23
  • The Twin Dilemma (4)
    The Twin Dilemma (4)Episode 24
Cast of Season 21
  • Peter DavisonThe Doctor
  • Nicola BryantPerpugilliam "Peri" Brown
  • Janet FieldingTegan Jovanka
  • Mark StricksonVislor Turlough

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