General Kalthar

Origin
When the evil Agents of Viro appeared at work on Earth, under the direction of General Kalthar, Steve Hiromatsu was forced to assume his secret identity of Astro-Man, so that he could use his abilities to combat them. What Steve did not know is that there had been many attempts to activate the agents of Viro, over the centuries, but none of the energy pulses was ever strong enough. Kalthar had ordered a blast of the energy to be detonated that was so powerful, it killed nearly all life on Viro. Only a few survivors remained on Kalthar's flagship, and he was the only one left who had been engineered to manipulate the same powers as Astro-Man. Now, Kalthar wishes to rebuild Viro on earth and has vowed to turn Astro-Man into a loyal agent of Viro...or destroy him.