Thomas N. Thomas operated as the "mystery man" T.N.T. during World War II with Daniel Dunbar as his partner Dan the Dyna-Mite, the both of them possessed with the same kind of power. T.N.T. was killed in battle during that time, though, and Dyna-Mite had to continue on without him.

  • This version of the character is native to the JSA: The Golden Age series of stories, appearing mostly as a cameo character.
  • In mainstream continuity, T.N.T. was killed in 1942 by Gudra the Valkyrie who was a member of Axis Amerika.