Ice Soldier

From TARDIS Index File, the free Doctor Who reference.

The Ice Soldiers were four warriors guarding one of the keys to the Conscience of Marinus. Susan, Ian Chesterton and Barbara Wright accidentally freed them from suspended animation while trying to retrieve the key. They tried to kill the group of travelers, and succeeded in killing Vasor. (DW: The Keys of Marinus)

Aliens and Enemies of Season 1
An Unearthly Child: Kal The Daleks: Daleks  • Thals  • Lake Monster Marco Polo: Tegana  • Mongol Bandit  • Malik  • Acomat  • Kuiju The Keys of Marinus: Yartek  • Voords  • Marinusians  • Morpho Brains  • Vasor   Ice Soldiers  • Kala  • Aydan  • Eyesen The Aztecs: Tlotoxl   The Sensorites: Sensorites  • Second Elder   The Reign of Terror: Maximilien Robespierre  • Léon Colbert