Ice Man is one of the Robot Masters from the original NES Mega Man game. He was designed by Dr. Wright and reprogrammed by Dr. Wily.
Ice Man was defeated by Kevin Keene as he, along with Princess Lana, Duke, and Mega Man, are traveling to Cuts Man's lair.
He was recreated along with the other Robot Masters through the use of the Three Sacred Treasures, but was defeated when the treasures were destroyed by Kid Icarus' newly acquired Fire Arrow.
Ice Man is also referenced in "Nightmare on Mother Brain's Street," in which he plays a role in Mega Man's nightmare.
In Mega Man, Ice Man looks like a cutesy kid and attacks by throwing icicles. In Captain N, Ice Man looks like an old man made of ice and attacks with a freeze ray.