Origin

Harriet Pratt and her girlfriend, Lily, were small-time con artists. They would also do odd side jobs. One night they did a gig where they were animal themed hostesses. Harriet had donned a rabbit costume. When they were hiding from some of the aggressive hooting, they saw their employer pitching some new hypnosis inventions to some investors. They knew they would be a pretty penny and decided to steal them as soon as they left. While they were grabbing the merchandise, Mad Hatter walked in making them pause. Security came in soon after. Mad Hatter was able to escape but Harriet and Lily weren't so lucky. They put up a fight but Harriet got shot and Lily was struck in the back of the head. Both were then tossed in the river. When they washed up on shore, Mad hatter pulled Harriet out of the water. The icy water had kept her conscious, but her girlfriend had died. Jarvis helped nurse Harriet's gun wound. She remade her rabbit outfit into her villain suit. Mad Hatter fixed the tech he had stolen, and together they had become Mad Hatter and March Harriet.

Creation

March Harriet was created by Paul Dini and Dustin Nguyen and first appeared in Detective Comics #841.

Major Story Arcs

As a member of the Wonderland Gang, March Harriet participated in an robbery during Gotham Fashion Week. The Gang fled when police arrived, but robbed Empire Bank the next morning. Batman tracked the Wonderland Gang to Gotham's Amusement Mile, an amusement park. March Harriet ambushed Batman alongside her teammates in the Hall of Mirrors, but was quickly defeated and taken into custody.

Alternate Versions

Batman: Arkham City

March Harriet appears briefly in the comic based on the video game series. Vicki Vale, Catwoman, and Poison Ivy were captured by the Wonderland Gang. Batman tracked the gang back to the Mad Hatter's Hat Shop, where March Harriet greeted the hero. She told him he doesn't belong there, and sends the Lion, the Walrus, and the Unicorn after him. Batman defeats the three, then knocks Harriet out by throwing her into the Unicorn.

Batman: Li'l Gotham

March Harriet appears alongside The Wonderland Gang in the Li'l Gotham universe. She attended a tea party with the captured Batman and Robin, and later attacked Batman, though she was quickly defeated.

Other Media

Animation

Lego Batman Movie

March Harriet appears in the movie, with no speaking lines, as one of the Batman villains.