DC Database

The Weasel was an enemy of Firestorm.

John Monroe was a former colleague of physicist Professor Martin Stein at Stanford University. As a student, he was an unremarkable and unlikable man in which he endured the disrespects sent by his peers whom referred to him as "weasel." This drove him to become very bitter and insecure. When he became a teacher at Vandermeer University, Monroe could not stand his fellow students from his old university who held prominent positions at Vandermeer's faculty. Assuming them as a threat to his tenure, Monroe took on the costume identity of Weasel and murdered several of the Stanford alumni, causing panic on the university campus. Monroe later found that Martin Stein had recently begun working at Vandermeer, replacing one of his victims, Professor Peter Banks. The Weasel attacked Stein at the Hotel Sheridan, and would have killed him, had Stein not prompted the transformation into Firestorm.[1]

Weasel was incarcerated at Belle Reve, where he was later recruited into the Suicide Squad due to his bloodthirstiness being seen as an asset. He participated in a mission to rescue Hawk. During the mission, he went on a murderous frenzy and managed to cause the apparent death of The Thinker. The Suicide Squad's leader Rick Flag Jr. wore The Thinker's helmet in an attempt to salvage the mission, but an imprint left by The Thinker's dying thought took over Flag into killing Weasel.[2]

During the Blackest Night, Weasel's dead body was revived as a member of the Black Lantern Corps.[3]


  • Although this character was originally introduced during DC's Earth-One era of publication, their existence following the events of the 1985–86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and should be considered apocryphal.


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Deathstorm (New Earth)
Firestorm Villain(s)
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This character, team or organization, is or was primarily an enemy of Firestorm and any of his supporting cast or members of the Firestorm Matrix. This template will categorize articles that include it into the "Firestorm Villains category."

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Suicide Squad member
This character is or was a member of the Suicide Squad, a team of imprisoned super-villains who perform high-risk missions for the U.S. Government in exchange for commuted sentences, in any of its various incarnations. This template will categorize articles that include it into the "Suicide Squad members" category.