DC Database

Ben Krullen is a nuclear powered villain of Supergirl and the Doom Patrol.

Sgt. Ben Krullen served in the United States Army during the Vietnam War. In the conflict, the sergeant attempted to massacre a village of innocent non-combatants. One of the soldiers in his platoon, sixteen-year-old Joshua Clay, was horrified at what he had witnessed, and the experience activated his latent Metahuman abilities. The sergeant was consumed by the concussive impact of Clay's attack and gained his own superhuman abilities as a result.

Years later, Krullen adopted the costumed identity of Reactron. His entire body was covered in a special protective suit. He harnessed the ability to project explosive blasts of atomic radiation and once fought against Supergirl and the Doom Patrol.


  • Radiation Production: Ben Krullen was irradiated by Joshua Clay when the boy first gained his own abilities. The experience left Ben with an unhealthy dose of radiation which would leak out of his body.
    • Energy Projection: Ben could focus this ability (see below) through his hands and produce beams of radioactive energy to attack his enemies.


  • Reactron Suit: Ben wears a protective suit over his body to channel the energy he produces through his hands and to protect himself from further irradiation both to himself and to unwitting victims.

  • This version of Benjamin Krullen (Earth-One), including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.



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Doom Patrol Villain(s)
This character, team or organization, is or was primarily an enemy of the Doom Patrol at some point in their career. This pertains to all incarnations of the Patrol throughout history. Including but not restricted to their arch-enemies the Brotherhood of Evil. This template will categorize articles that include it into the category "Doom Patrol villains."

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Supergirl Villain(s)
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This character, team, or organization, is or was primarily an enemy of Supergirl. This template will categorize articles that include it into the "Supergirl Villains category."