She is voiced by Rumi Kasahara in the Japanese version of the anime, and Tiffany Grant in the English dubbed version of the anime.
Shalulia is a cold and ruthless woman who views everyone below them as inferior. When one of her slaves faints, she is dissatisfied and demands a replacement which shows her lack of empathy for those individuals below her. Like most Celestial Dragons, Shalulia does not care about the attacks she commits on other people and her slaves. Despite her merciless personality, Saint Shalulia shows concern about her father and brother when they were attacked by the Straw Hats and shows some care for their well being. Saint Shalulia, like most Celestial Dragons, is xenophobic and have hatred towards the Fishmen.
Shalulia first appears when her slave, Devil Dias escapes in Sabaody Archipelago, making her father comment on her carelessness in ruining his captain collection. After Dias's collar explodes, she mocks him, shoots him and then casually walks away commenting on how next time she wants a giant as her slave. She appears later at the slave auction that is operated by Donquixote Doflamingo. When Luffy punches her brother, Saint Charloss, she is surprised by the chaos and is surprised by her father, Saint Rosward, getting knocked out by pirates.