Public Domain Super Heroes


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Demo with Thunder gear

Real Name


First Appearance

T.H.U.N.D.E.R. Agents #1 (1965)

Original Publisher


Created by

Reed Crandall

Silver Age Origin

Demo was one of the Warlord's most formidable agents. He had an underground lair, an assistant named Satanna, and an army of humanoids called sub-men. In his first appearance , he sent his sub-men to steal some chemicals, but they were stopped by NoMan Later he stole Dynamo's belt, NoMan's cape and Menthor's helmet, and briefly had access to the entire team's powers.
Demo and sub-men

Demo and his Sub-Men Army

Silver Age Appearances

  • T.H.U.N.D.E.R. Agents #1, 5-6

See Also

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