The chief chemist associated with General Ludendorff who specializes in chemistry and poisons. On her role, Anaya said, "Well, it was a small role in this big ensemble, but it is an important character in the story. I'm going to be a big nightmare" for Wonder Woman and Steve Trevor. Describing her character, Anaya said, "Dr. Maru loves rage and enjoys people's pain. She's creating terrible weapons, and her purpose in life is to kill as many people as possible, and provoke as much pain as possible". She researched World War I and Fritz Haber, the scientist who created mustard gas, to prepare for the role. On the character's facial scars, Anaya stated, "I went to Patty Jenkins and asked, 'What happened to her?' And she said, 'She did it on purpose.' I was like, 'What? Patty, you're going further than I ever imagined.' She said, 'She wants to provoke painful suffering, so she tested her own gas on her own face. She wanted to know how deep this form of her gas would go, so she put it on her own face.' You can see half of her face is completely gone. This is the sadistic side of Dr. Maru". She also stated her character "is quite the opposite to the lead role of this movie, one of the strongest characters ever of DC comics, Wonder Woman. I can tell you that Doctor Poison is someone with a capacity to provoke so much pain." On Dr. Maru's relationship with General Ludendorff, Anaya said, "I think that they have a relationship based on loyalty. Ludendorff is a very tormented General that lacks self-confidence. That's why, in part, he takes these drugs that Dr. Poison gives him. They are from different worlds, but they complement each other".
In the "Watchmen" sequel "Doomsday Clock," Doctor Poison attended the meeting established by the Riddler and mentioned a rumor that Wonder Woman was forcefully dragged back to Themyscira by her fellow Amazons. Wonder Woman comes out of hiding to address the United Nations, hoping to defuse the metahuman arms race. However, the summit is interrupted by Black Adam, the Creeper, and Giganta, who take advantage of the absence of most of Earth's superheroes to attack the UN at the time when the superheroes were confronting Doctor Manhattan on Mars.
Membership Air Wave • Amazing Man • Atom Smasher • Batman • Black Adam • Captain Marvel • Citizen Steel • Cyclone • Damage • Darknight • Hawkgirl • Hippolyta • Huntress • Jakeem Thunder • Johnny Thunder • Judomaster • King Chimera • Liberty Belle • Lightning • Magog • Miss America • Mister America • Obsidian • Power Girl • Red Beetle • Red Tornado • Ri • Robin • Sand • Stargirl • Star-Spangled Kid • S.T.R.I.P.E. • Thunderbolt • Tomcat • Superman • Wonder Woman
Wonder Woman also met the Lamia of myth, who laid with Zeus and bore his children. Hera changed her into a snake-like creature and killed her children. She now lurks in the American sewers, acting as a benevolent caregiver to troubled children. She attempted to commit suicide using Diana's lasso (which she had her young friend Sneaker steal), but Diana stopped her and Lamia disappeared along with Sneaker, with whom she had developed a mother-daughter relationship.
The Lasso of Truth forces people to tell the truth. It was forged by Hephaestus from the Golden Girdle of Gaea that Antiope had once worn. It is able to restore people's lost memories get rid of illusions or cause illusions to those it holds and heal the holder's body cure insanity and protect people who are in close proximity to it from magical attacks. In the golden age version the lasso could also take on a rigid form and hold people aloft from a great distance away. During these eras, the lasso also forced those who were bound by it to act as the holder demanded. This trait also affected Wonder Woman. A non-combat application of the lasso is that it can be used to change Diana's clothes as long as those clothes are "in the right frequency" as the lasso. Although this was a plot device used more often in the golden and silver age in has been used on occasion in modern comics as for instance one time Diana transformed into a Miss America costume. The lasso is essentially indestructible, and can be offensively used in combat to incapacitate, and even attacking their souls.
Not even girls want to be girls so long as our feminine archetype lacks force, strength, and power. Not wanting to be girls, they don't want to be tender, submissive, peace-loving as good women are. Women's strong qualities have become despised because of their weakness. The obvious remedy is to create a feminine character with all the strength of Superman plus all the allure of a good and beautiful woman.