Ice Warriors

The Ice Warriors and Ice Lordswere a race of reptilian humanoids from the planet Mars.

Biology
Adult, fully armoured Ice Warriors were large, imposing reptilian humanoids, up to seven feet tall. Unarmoured, they had flattened, scaly faces with sharp fangs and thin green tongues. (TV: Legacy) Due to differences in atmosphere and gravity, in Earth-like environments, Ice Warriors perpetually wheezed and tended to move slowly, (TV: The Seeds of Death)  though they could move fast when needed. (TV: Legacy)

Honour
Ice Warriors had a strong sense of personal honour. After the Third Doctor saved the life of the Ice Lord Izlyr, he felt obligated to help the Doctor escape. (TV: The Curse of Peladon) Ice Warriors disliked lying, though they would do so when necessary. (TV: Legacy)

Titles

 * upreme Lord - a high ranking position. (TV: Legacy)
 * Grand Marshall - the staff of a Grand Marshal was an important relic. (TV: Legacy)
 * Marshal - wore decorative helmets with jewels. (TV: The Seeds of Death, TV: Legacy)
 * Shsurr - a title that roughly translated to mean M'lady. (TV: Legacy)

Armour
This survival armour augmented their already considerable strength. This included a half-face helmet and a red blast-screen over each eye. Ice Warrior nobility ("Ice Lords") wore light armour with sleek, bullet-shaped, metallic helmets, a simple breastplate and a cape. (TV: The Seeds of Death) An Ice Marshall's helmet contained circuitry beneath its surface and acted as an additional nervous system for its wearer after it bonded with the cranium. (TV: Thin Ice) Common warriors had much heavier and bulkier, intricately patterned full-body armour, and stubby helmets (some designs of which also placed blast screens over the ears). (TV: The Curse of Peladon)

Their exoskeletal armour melded with the body of their wearer and an Ice Warrior was described as being one with their armour. (TV: Thin Ice)

Weapons
Though Ice Warriors had small sonic weapons in the wrist of their armour as a personal defence weapon, (TV: The Ice Warriors)

They also made use of sonic grenades that operated by emitting a sonic impulse which caused a violent implosion of the eardrums of anyone within the vicinity of the blast radius. (TV: Thin Ice)

Terraforming
They could deploy seeds on a planet which altered the environment and made it an icy world. (TV: The Seeds of Death)

Early History
Some exploration of other planets was attempted. Varga went to Earth, but his ship was trapped in a glacier for thousands of years. Some time after this, the Ice Warrior's civilisation went into decline as Mars became more inhospitable. (TV: The Ice Warriors, Legacy)

10th Century
The Ice Lord Sezhyr was laid to rest with his relics. (TV: Ice Time)

20th Century
At some point a revolution took place on Mars and the Ice Warriors split into different factions with one side wishing to abandon the old ways. A group of Ice Warriors led by the Ice Lord Hhessh were exiled from Mars but took Sezhyr's relics in the hopes of somehow resurrecting him. They soon arrived on Earth in 1933 but the ship containing the relics crashed into the Moscow River. The remaining Ice Warrior ship was placed into a large freezer where they were allowed to hibernate by Vitali Wolshkin. (TV: Thin Ice)

In 1967 Vitali woke most of the Ice Warriors up so that he could set up a mission to retrieve the relics of the Ice Lord Sezhyr from the Kremlin in Moscow. Hhessh was transported to Moscow before being revived and was aided by the Seventh Doctor, Ace, Markus Creevy and Raina Kerenskaya Once Sezhyr was resurrected through Raina she attempted to lead an invasion force on Earth. But these plans were thwarted by Ace. (TV: Thin Ice)

21st Century
Another invasion and terraforming was attempted in the mid-21st century, when the Ice Warriors, led by Slaar, invaded the central T-Mat base on the Moon which regulated global T-Mat operations. He attempted to use a fungus, which would turn the Earth into a more hospitable planet for them. The Second Doctor and his companions stopped him. (TV: The Seeds of Death)

39th Century
The Ice Lord Izlyr represented the Ice Warriors when the members of the Galactic Federation met to discuss wether Peladon should join the Federation. (TV: The Curse of Peladon)

40th Century
By the late 40th century, the Ice Warriors (still in the Galactic Federation) had, for the most part, renounced their war-like ways. (TV: The Curse of Peladon, The Monster of Peladon)

In 3935 a faction of Ice Warriors led by the Ice Lord Azaxyr were working for Galaxy 5 who were at war with the Galactic Federation. These Ice Warriors desired to return to the Ice Warriors former ways of military conquest. Azaxyr and his troops helped take over the Trisilicate Mines while making out that they'd been sent by the Federation to keep the miners under control. The Third Doctor and Sarah Jane eventually defeated them. (TV: The Monster of Peladon)

In 3984 An Ice Lord named Rassbur led a team of Ice Warriors to Peladon in order to guard a treasure that had been brought to Peladon in order to protect it from a group of mercenaries. However almost all the Ice Warriors were killed by a Sontaraan grenade. (TV: Legacy)

51st Century
Circa 5000, during an Ice Age on Earth, Varga and his crew were finally revived and decided to take over first Brittanicus Base and then the world. (TV: The Ice Warriors)

Legacy
While on trial for breaking the Time Lords non-interference policy, the Second Doctor used a Thought Channel to show them some of the evils he'd fought against, one of which was an Ice Warrior. (TV: The War Games)

While under attack from the Keller Machine, the Third Doctor saw an illusion of an Ice Warrior. (TV: The Mind of Evil)

Undated events
At some point, an Ice Lord named Axier was imprisoned in a Time Lord prison alongside two other Ice Warriors. When Hildron escaped, he allowed the three Ice Warriors to escape. The three traveled to a desert planet, where they attempted to create a terraforming bomb that would cool the core temperature of the planet, their plans were thwarted by Sarah Jane Smith. (TV: The Time Trap)

Behind the Scenes

 * Strictly speaking, according to their debut story, the Ice Warriors never had that name until Walters gave it to them and Victoria Waterfield carried Walters' description back to the Second Doctor. Subsequent stories would forget this, and have the Ice Warriors use this name to refer to themselves.

Season 5

 * The Ice Warriors

Season 6

 * The Seeds of Death
 * The War Games (cameo)

Season 8

 * The Mind of Evil (cameo)

Season 9

 * The Curse of Peladon

Season 11

 * The Monster of Peladon

Season 27

 * Thin Ice

30th Anniversary Special

 * The Time Trap

Season 31

 * Legacy

Season 33

 * Origins of the Ice Warriors