Azaxyr

Azaxyr was an Ice Lord of Mars and leader of the Galactic Federation troops sent to Peladon.

Biography
Azaxyr was secretly a member of a breakaway faction which desired to return to the Ice Warriors' former ways of military conquest. The faction worked for Galaxy 5 and, with Eckersley's help, tried to take over the trisilicate mines of Peladon. Azaxyr was defeated by the Third Doctor and killed while fighting Gebek. (TV: The Monster of Peladon)