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Mary Sioux
メアリー・スー
She is the sole daughter of Anson Sioux. !Mary Sioux is one of the main antagonists of the series, the ultimate rival and the tool used by Being X in order to stabilize a neutral war against Tanya Degurechaff. After her father's death, she became rather more vengeful and serious. Her hatred grows when she hears the name "Devil of the Rhine," she will begin to rage but resulting exposing herself in a controlless side. She is the only person who can match Tanya von Degurechaff in many battles. !
Featured Anime Roles (3)
TV
7.8
Saga of Tanya the Evil
2017 · 12 eps
#Action#Fantasy
MOVIE
8.1
Saga of Tanya the Evil - the Movie -
2019 · 1 eps
#Action#Fantasy
TV
8.0
Saga of Tanya the Evil Season 2
2026 · 12 eps
#Action#Fantasy
Frequently Asked Questions
Key details on roles, native names, and appearances for Mary Sioux.
She is the sole daughter of [Anson Sioux](https://anilist.co/character/135048). ~!Mary Sioux is one of the main antagonists of the series, the ultimate rival and the tool used by [Being X](https://anilist.co/character/135044) in order to stabilize a neutral war against [Tanya Degurechaff](https://anilist.co/character/121052). After her father's death, she became rather more vengeful and serious. Her hatred grows when she hears the name "Devil of the Rhine," she will begin to rage but resulting exposing herself in a controlless side. She is the only person who can match Tanya von Degurechaff in many battles. !~