T.H.U.N.D.E.R. Agents is a fictional team of superheroes that appeared in comic books originally published by Tower Comics in the 1960s. They were an arm of the United Nations and were notable for their depiction of the heroes as everyday people whose heroic careers were merely their day jobs. The series was also notable for featuring some of the better artists of the day, such as Wally Wood. The team first appeared in T.H.U.N.D.E.R. Agents #1 (cover-dated Nov. 1965). The name is an acronym for “The Higher United Nations Defense Enforcement Reserves“.

T.H.U.N.D.E.R. Agents was a bimonthly comic book published by Tower Comics. It ran for 20 issues (Nov. 1965 – Nov. 1969), plus two short-lived spin-off series starring the most popular super agents (Dynamo and NoMan). To launch the project, Wally Wood huddled with scripter Len Brown (and possibly Larry Ivie) on a superhero concept Brown had described to Wood a year earlier. Brown recalled, “Wally had remembered my concept and asked me to write a 12-page origin story. I submitted a Captain Thunderbolt story in which he fought a villain named Dynamo.”[citation needed] With a few changes by Wood and a title obviously inspired by the success of the spy-fi television series The Man from U.N.C.L.E. and the then-current James Bond film Thunderball, the series got underway. Tower Comics went out of business in 1969, and the T.H.U.N.D.E.R. Agents went into limbo.

Taken from Wikipedia