Zzzax (Yost Universe)

Zzzax is a supervillain whose body is composed of pure electricity.

The Breakout
In the Cube Zzzax was locked up in a specialized prison cell when Doc Samson came to check on Bruce Banner in his cell. When the Breakout occurred, he pursued and attacked Doctor Samson while he was helping Bruce Banner out of a pile of rubble, leaving a lightning bolt scar on Samson's right eye. Banner was able to transform into The Hulk when his old nemesis tried to zap him too and beat up Zzzax before carrying Samson out from the Cube.

Gamma World
Under the Leader's influence, Zzzax remained behind to assist in guarding the Gamma generator inside the prison. When the Avengers arrived to destroy the generator, he and the U-foes ambushed them and destroyed the protective armor of Wasp and the S.H.I.E.L.D. agents that accompanied them, turning the group into gamma monsters. Zzzax was beaten by Iron Man and Captain America after the generator was destroyed and was placed back in custody.