History
Zeno was a giant blinded by a lightning bolt from Zeus and was then spared from an imprisonment in Tartarus. He and fellow giant Callias were feasting on a boar outside the door when the Hulk arrived. Assuming he was a fellow giant they invited him to eat, and the trio feasted for a bit until Ares attacked them for "stealing" his hunt. The Hulk threw Ares into the gate cracking it and the pair of giants encouraged him to attack the Olympians on Mount Olympus in vengeance. Later, when Cronus escaped and the Olympians arrived, Hercules slayed both Zeno and Callias.[1]