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Colonel Marina Maru, also known as Doctor Poison, is a Japanese toxicologist with a grudge against the United States Government and the superhero Wonder Woman.


Colonel Marina Maru is a Japanese soldier working for the organization founded by her family, the Poison. She created the Maru Virus, a poison that drives its victims to rage-induced murder. During Wonder Woman's first few months in the "Man's World", she discovered a group of men infected with the virus, but managed to resolve the situation with the help of A.R.G.U.S..[2][3]

New 52

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This section of the history takes place during the New 52, between the events of Flashpoint and DC Rebirth. It was later revealed that much of Wonder Woman's history from this time was an elaborate illusion created by the Gods of Olympus to keep her away from Paradise Island. All or part of this section may have been part of that illusion and no longer valid in Rebirth.
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Doctor Maru

When Maru was young, her parents, both Russian scientists, were approached by the Americans to produce a chemical weapon. They refused, but days later, they were arrested. Maru only learned years later her parents died during their interrogation.[4]

Maru dedicated herself to her parents' work, but not for the Americans - instead, she would use it against them. She plotted to poison President Obama at a G8 summit in London. One scientist she had abducted managed to get word out, and Wonder Woman countered her plans. Maru planned to disperse the poison close to the president with a cloaked drone, but Wonder Woman disabled it. Maru escaped, but was apprehended shortly after and handed over to the police. With the aid of a concealed poison capsule, she escaped from the prison van.[4]

DC Rebirth

Team Poison

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Doctor Poison against Wonder Woman

Veronica Cale hired Doctor Poison and her mercenary squad to capture Wonder Woman. Maru and her team were on a helicopter to approach the Amazon, and Maru put in a call to her employer. Cale outlined the need to take Wonder Woman alive to help their mission of finding Themyscira. Maru and the mercenaries went to the camp The Picket in Kirby Road, without making a sound, until they were found by Steve Trevor and opened fire, stopping paying attention for the camp traps and injuring themselves.

As Wonder Woman was weak, Maru managed to intercept her and put her at gunpoint. She threatened her with the gun and asked Steve Trevor about her fugue. Steve, buying time, said he didn't know. Maru then shot Steve in the leg and then got the Amazon to carry him back to the helicopter landing zone. Arriving at the zone, Maru ordered them both onto the helicopter, but Steve said no and pushed himself and Wonder Woman behind a rock, so A.R.G.U.S.. opened fire in the helicopter, destroying it.[2]

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Doomsday Clock

During the Doomsday Clock, Doctor Poison was among the villains who attend an underground meeting held by Riddler about the "Superman Theory". She talked about a rumor that the Amazons forcefully took Wonder Woman back to Themyscira.[5]

Infinite Frontier

Maru later became a member of the Villainy, Inc.[6] She attempted to kidnap Siegfried and Steve Trevor, but was unsuccessful as she was unable to pierce Siegfried's skin with her needle.[7] She later attempted another abduction, but this time it was successful as she doused Siegfried in chemicals which absorbed into his skin, followed by shooting Steve with a tranquilizer dart.[8] Etta Candy later arrived at her lab and freed both her hostages. Steve then injected her with her own poison, and she was subsequently incarcerated.[9]



  • Military helicopter




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Wonder Woman Villain(s)
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This character is or was primarily an enemy of Wonder Woman and the Amazons in any of her various incarnations. This template will categorize articles that include it into the "Wonder Woman Villains category."