The Ice Warriors are a fictional extraterrestrial race of reptilian humanoids in the British science fiction television series Doctor Who. Natives of Mars, the Ice Warriors wear bio-mechanical armour to protect themselves from attack and temperature fluctuations. In their debut, the 1967 serial The Ice Warriors, they fought the Second Doctor. Two years later, they reappeared in The Seeds of Death. In 1972's The Curse of Peladon, they were allied with the Doctor, reverting to antagonists in The Monster of Peladon two years later. The Ice Warriors did not appear again on-screen until the show's 2005 revival series in the episode "Cold War" (2013), followed by the 2017 episode "Empress of Mars". They have also appeared in spin-off media for the series.