Tzaa

From Tardis Wiki, the free Doctor Who reference

Tzaa was an Ice Warrior who had travelled to Earth in search of conquest, led by Ice Lord Ixna. He landed on the South Pole near Snowcap Base and was frozen in the snow.

Several centuries later he was unfrozen due to the climate changing to become warmer.

He later took part in the attempted takeover of the Snowcap Base by freezing down planet Earth, but was defeated by Tegan Jovanka and Ace who reversed the polarity by turning back on the heat. (GAME: Reverse the Polarity [+]Loading...["Reverse the Polarity (episode)"])