Mister Freeze (Victor Fries) is a DC Comics supervillain, an enemy of Batman. He first appeared in Batman #121 (1959). Originally called Mr. Zero (and on one occasion Dr. Zero), Mr. Freeze was renamed and popularized in the 1960s Batman television series. Other interpretations of the character appeared in Batman: The Animated Series (as well as the direct-to-video off-shoot of the series Batman & Mr. Freeze: SubZero) and Batman and Robin, in which he was portrayed by Arnold Schwarzenegger. Pre-Crisis Mr Zero/Mr Freeze was a rogue scientist whose design for an "ice gun" had led to his inadvertantly spilling cryogenic chemicals on himself, resulting in his needing sub-zero temperatures to survive. His motives for turning to crime were not explored beyond this. In the Batman: Mr Freeze special (based closely on the animated series episode "Heart of Ice") Victor Fries was fascinated with freezing animals as a child, which would lead to his career in cryogenics research. His parents, horrified by his "hobby", sent him to a strict boarding school, where he was miserable, feeling detatched from humanity. However, at university, he met Nora, whom he befriended and ultimately married. http://en.wikipedia.org/wiki/Mr._Freeze