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"Is Martin Stein in there?"
"Oh, I haven't let him out in years. Doesn't talk much anymore."
Cisco Ramon and Ronnie Raymond on Martin Stein[src]

Martin Stein (died February 9, 2016) was a meta-human who was transmuted and conjoined with Ronnie Raymond, who operated as a supervillain known as Deathstorm.


In 2013 after the S.T.A.R. Labs particle accelerator explosion, Martin Stein was exposed to the dark matter and merged with Ronnie Raymond. However, Ronnie resorted to trapping Stein within his body, refusing to change back to their human forms. Eventually, Stein stopped talking to Ronnie and the latter could no longer hear him. Ronnie soon became a criminal known as "Deathstorm" and began working for Francisco Ramon/Reverb, Zoom's right-hand man.

Two years later, Deathstorm (hence both Ronnie and Stein) was killed by Zoom as punishment for Ronnie nearly killing The Flash.[1]

Powers and abilities[]


  • Deathstorm connection/Meta-human physiology: After Martin was struck by the energy of the particle accelerator explosion, this altered his DNA and supercharged his cells, augmenting his physiology into well-beyond peak human condition. When Martin and Ronnie Raymond attained physical contact, they merged into a singular being, which chose the stronger body of the two (namely Ronnie).


The Flash[]

Season 2[]


  • It's possible that Stein either gave up on trying to communicate or was absorbed into Ronnie's mind, silencing his individuality.