Mileena is a clone of Princess Kitana, created by the sorcerer Shang Tsung and the genetic experiments of Shao Kahn, the series' main antagonist.

Mileena possesses a dual identity, combining the beauty of Kitana with a more aggressive and ruthless personality. She is known for her striking appearance, wearing a revealing costume, and her iconic facial feature—a Tarkatan mouth with sharp fangs. Mileena is a skilled assassin and a formidable fighter, specializing in close-range combat. Her signature weapon is a pair of sai, which she wields with deadly precision.

She made her first appearance in Mortal Kombat II. (Mortal Kombat)