In Mockingjay, Leeg 2 is a soldier of the rebellion from District 13. Not much is known about her. She is a member of Squad 451 along with her sister, Leeg 1. The sisters are so identical in appearance, that they are referred to as Leeg 1 and Leeg 2 by the squad for clarity. It is never explicitly stated that they are twin sisters, but Katniss Everdeen later remarks that the only way she could tell the two apart was by noting that Leeg 1 had "weird yellow flecks" in her eyes.
Leeg 2 goes to the Capitol with the rest of the squad to fight in the final battles of the war to crush Snow 's regime. Like the rest of her squad, Leeg 2 is angry and disappointed to learn that Squad 451 was never expected to participate in any real battles. Informed by Cressida that they are part of the "disinformation team" that is designed to misdirect the Capitol from discerning that the rebel soldiers true purpose is to clear the abandoned sections of the Capitol of the deadly pods so that the rebellion can advance as smoothly as possible.
As innocuous as Squad 451's tasks are, on the fourth day in the Capitol, Leeg 2 hits a pod that has been mislabeled. Instead of muttation gnats, the pod releases metal darts, which surprises Squad 451. Leeg 2 is hit in the side of the head by a dart and is killed instantly. She is the first casualty in Squad 451. After her death, she is replaced by Peeta Mellark.
In the film adaptation, Leeg 2 is injured by a pod, and decides to stay behind at an abandoned building, with Leeg 1 taking care of her while the rest of Squad 451 departs, hoping to call in for help as soon as possible. Soon after, Peacekeepers attack the building, with the Leegs shooting back. The Peacekeepers' response ends blowing up the building, and the destruction footage is used by the Capitol to imply Katniss has died.