In Mai-Otome, the Schwartz are a shadowy group dedicated to research and development of black science.
- John Smith (ジョン・スミス, Jon Sumisu) - the public face of the organisation.
- Female Slave Lord (女スレイブロード, Onna Sureiburōdo) - Smith's bodyguard. She is depicted as a mysterious woman seen accompanying Smith and Kid in 0~S.ifr~, covered almost entirely in dark clothes with navy blue bandages covering her face, revealing only her right eye. She had the ability to materialise "thornback"-type Slaves using her left eye, which glows when active.