Icemen

The Icemen were a race that once lived on Earth. But there was apparently only one Iceman left in the 1960s. This particular Iceman tried to make the Earth into a frozen wasteland by freezing it into an icy wasteland. Superman stopped him, and flew him to an asteroid that he allowed the creature to freeze.

History
Nothing is known about the history of this race. They apparently came from Earth, but this is merely conjecture. They seem to have human-level intelligence, as it was noted that the creature did make an ice bomb, and it also was seen using a mining tool. They possess cryokinetic abilities, so they can freeze objects at will. Their skin, which was apparently made of "organic ice," is different then traditional ice, which would vaporize when exposed to the vacuum of outer space. They apparently could survive in space, and either do not need to breathe, or they can hold their breath much like humans do. It seems apparent that the Iceman was the last of his kind, as there hasn't ever been seen any other Iceman. However, the Ice Demon was very similar, and he may be part of a race that is related to the Icemen.

Appearance
The New Adventures of Superman
 * The Abominable Iceman