Doctor Poison

Doctor Poison is a fictitious character who frequently appears in DC Comics publications and related media as a recurring foe of Wonder Woman. She initially appears in 1942's Sensation Comics (vol 1) issue 2, written by Wonder Woman creator William Moulton Marston and illustrated by Harry G. Peter, and she retains the distinction of being Wonder Woman's first costumed supervillain.

Various versions of Doctor Poison have been depicted as the narrative continuity of Wonder Woman comics has been modified by different writers and artists over the years, usually as perversely cruel toxicologists of Japanese heritage. Since her introduction, the character has gone through at least four different incarnations: (1) Doctor Poison Princess Maru of the Golden Age, (2) the Modern Age Doctor Poison, Princess Maru's mysterious unnamed granddaughter, who first appeared in 1999's Wonder Woman (vol 2) issue 151, (3) the short-lived New 52 Doctor Poison, a Russian scientist known only as Dr. Maru, who first appeared in 2016's Wonder Woman (vol 4) issue 48, and (4) Colonel Marina Maru, a Post-Rebirth reformulation of the character who leads an elite team of mercenaries known as "Poison".

Beyond comic books, Doctor Poison has appeared in various Wonder Woman media productions, including Patty Jenkins' high-profile 2017 feature film Wonder Woman (in which Elena Anaya portrays the character) and the 2019 Warner Brothers animated film Wonder Woman: Bloodlines (in which she was played by voice actor Courtenay Taylor).