The first issue introduced the first three T.H.U.N.D.E.R. Agents: Dynamo, No-Man and Menthor. United Nations soldiers storm a mountain laboratory of a UN scientist, Professor Emil Jennings, driving off the forces of the Warlord. The scientist dies, but leaves behind several inventions — super weapons to combat the Warlord's worldwide attacks. Leonard Brown is given the Thunder Belt, which makes him super strong and invulnerable for a short amount of time, and is code-named Dynamo. Dying scientist Anthony Dunn transfers his mind into an android body of his own design. With a wide number of identical bodies, he can transfer his mind to any of them should something happen to his current one. He is given an invisibility cloak and becomes No-Man. John Janus gains mental powers from the Menthor Helmet. He is a double agent for the Warlord, but when he wears the helmet, he turns good. Joining these super agents is the T.H.U.N.D.E.R. Squad, a special team of agents who fight the Warlord. This team included Virgil "Guy" Gilbert, Dynamite (Daniel John Adkins), William "Weed" Wylie, Kathryn "Kitten" Kane, and James "Egghead" Andor. In subsequent issues, additional agents were added. Gilbert of the T.H.U.N.D.E.R. Squad is given the Lightning Suit and becomes a super agent in issue #4. In issue #2, the Warlord is revealed as a Subterranean, and his forces are humanoids who live under the surface and have engaged in a war to reclaim the surface world from humans. Also in this issue, "Egghead" is killed in action but later reappears as a villain in an issue of ''Wally Wood's T.H.U.N.D.E.R. Agents''. In issue #7, Menthor is killed. In issue #8, Craig Lawson is given an experimental rocket pack and becomes the Raven, and the Subterraneans are defeated. Later post-Tower additions included sonic-powered agent Vulcan (Travis F. Riley), two different Undersea Agents (Lt. David "Davy" Jones and his daughter, Theresa) and two later versions of "new" agents who wore the Menthor helmet. With the threat of the Subterraneans ended, new villains appeared in the original series. Issue #9 introduced S.P.I.D.E.R. (
Secret
People's
International
Directorate for
Extralegal
Revenue), the main villains for the rest of the series. Other menaces included the Iron Maiden, an armored mastermind (introduced in issue #1 as a possible love interest for Dynamo) who worked for the Subterraneans; Andor, a fast-healing telekinetic superhuman created by the Subterraneans who was introduced in
Dynamo #1; along with Red Star (a Communist menace) and others. In the 2010 DC Comics series, S.P.I.D.E.R. kidnaps the Raven and kills Dynamo and Lightning. New versions of Lightning and Dynamo are recruited, and the original No-Man, who had left the team because he was losing his humanity, was replaced. By this time, a number of people had been behind the costume of each T.H.U.N.D.E.R. Agent, since the devices that gave them their powers are eventually fatal. Also introduced are T.H.U.N.D.E.R.'s recruiters, field agent Colleen Franklin and salesman Toby Heston. In the assault on S.P.I.D.E.R. to rescue the Raven, Toby is revealed as the brother of S.P.I.D.E.R.'s new leader, given a false personality to infiltrate T.H.U.N.D.E.R. When he attempts to use the Menthor helmet to gain the Raven's secrets however, he regains the "Toby" personality, similar to the effect that it had on Janus. Colleen is revealed to be the daughter of Len Brown, the original Dynamo and the Iron Maiden. They live quietly in
Sydney, Australia, but the T.H.U.N.D.E.R. Squad raid their home and capture the family. Brown wears the Dynamo belt one last time in exchange for his daughter and the Iron Maiden's life and apparently dies during the mission. The Iron Maiden escapes T.H.U.N.D.E.R.'s custody, leaving Colleen to be raised by T.H.U.N.D.E.R. Years later, Colleen tracks down the Iron Maiden and after extracting information from her with the help of Toby Heston, leaves her to be killed by the daughter of one of her former victims. Soon the Subterraneans, who were defeated back in the early 1970s, start an uprising led by Demo. It was the existence of the Subterraneans that led to the establishment of the Higher United Nations and T.H.U.N.D.E.R. The new Dynamo is killed and a new Raven is introduced. In a backup series, a new UNDERSEA Agent is introduced. == Members ==