Demo

Silver Age Origin
Demo was one of the Warlord's most formidable agents. He had and underground layer, an assistant named Satanna, and an army of humaniods called sub-men. In his first appearcne, he sends his sub-men to steal some chemicals, but is stopped by No-Man Later he stole Dynamo's belt, NoMan's cape and Menthor's helmet, and briefly had access to the entire team's powers.

Silver Age Appearances

 * T.H.U.N.D.E.R. Agents #1, 5-6