Firestorm (comics)
Firestorm is the name of several comic book superheroes published by DC Comics. Ronnie Raymond and Martin Stein, the first Firestorm, debuted in Firestorm, the Nuclear Man No. 1 (March 1978), and was created by Gerry Conway and Al Milgrom. Martin Stein, by himself as Firestorm, debuted in Firestorm the Nuclear Man vol. 2 No. 100 (August 1990), and was created by John Ostrander and Tom Mandrake. Jason Rusch, the third Firestorm, debuted in Firestorm vol. 3 No. 1, (July 2004), and was created by Dan Jolley and ChrisCross.
He is distinguished amongst superheroes: he is not merely one being with superpowers/super-abilities/super gadgets (as most superheroes are, such as Superman and Batman), nor is he one being when human and another semi-distinct being in "super" mode (a la Captain Marvel or Etrigan). Firestorm instead is two normal human beings when non-powered, who then combine in "super" mode to form Firestorm.
Read more about Firestorm (comics): Publication History, Powers and Abilities, Other Versions