Zzed was an immortal who had been present at all the greatest human tragedies in history for the last 2000 years. It seems that he could not die until the world came to an end, and he hoped to hasten the process. Even without the power of the star brain, Zzed had accumulated great knowledge in his centuries of life, and he frequently spoke ancient incantations of some unknown language. Although he could be killed temporarily, he seemed to have rapid regenerative abilities that would bring him back to life.