Giselle Gewelle is a member of the Wandenreich's Sternritter, an elite group of Quincy warriors in the anime and manga series Bleach. Known by the designation 'S', for 'The Zombie,' Giselle possesses the unique ability to turn both living and dead beings into zombies under her control. She is characterized by her playful yet sadistic personality, often displaying a twisted sense of humor. Throughout the Thousand-Year Blood War arc, Giselle plays a significant antagonistic role, clashing with several members of the Gotei 13.