Easily recognized by his wavy hairstyle, Gamma Jack was a favorite of the ladies (his original name being "Handsome Jack") and was prone to megalomaniacal impulses, believing Supers to be a "superior race". He also chose to prioritize saving attractive women above protecting other innocents. Gamma Jack would routinely kill villains though struggled with dame-villains and considered those the hard days. These impulses and traits caused the NSA great concern, who placed him under close monitoring.

Gamma Jack was one of the Supers who was later targeted by Syndrome and his Omnidroid. While he managed to destroy one of the gigantic robots, he was ultimately killed by its successor.

Powers and Abilities

Aside from his superpowers, Gamma Jack possessed as high level of intelligence, as shown on his NSA file.

• Radiation Bursts - Gamma Jack's primary superpower was the ability to create controlled bursts of radiation, from focused burns to complete disintegration. The maximum range of this high-intensity burst was 100 meters, before a sharp intensity falloff.

• Radiokinetic Flight - Using his radioactive powers, Gamma Jack could achieve flight. While flying, he left a faint trail of green-tinged gamma radiation behind him.
• Intelligence - Gamma Jack was noted by the NSA to possess high intelligence.