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.
!~

High above the blood- and mud-soaked trenches, a young girl pits herself against army mages in high stakes aerial duels with bullets, spells, and bayonets. Her name is Tanya Degurechaff and she is the Devil of the Rhine, one of the greatest soldiers the Empire has ever seen! But inside her mind lives a ruthless, calculating ex-salaryman who enjoyed a peaceful life in Japan until he woke up in a war-torn world. Reborn as a destitute orphaned girl with nothing to her name but memories of a previous life, Tanya will do whatever it takes to survive, even if she can find it only behind the barrel of a gun! 
(Source: Yen Press)

What would an ultra-rational Japanese salaryman do if he was reborn as a girl in a world where magic was real? Obviously, become the Empire's most feared magic soldier, while climbing the army career ladder at the ripe old age of nine. The only things standing in Tanya Degurechaff's way are a world war and maybe a supernatural being or two. But Tanya isn't about to let artillery shells or deadly spells stop her when a cushy desk job is calling! 
(Source: Yen Press)

The novel series centers on a young girl who fights on the frontlines in war. She has blonde hair, blue eyes, and nearly transparent white skin, and she flies through the air and mercilessly strikes down her opponents. Her name is Tanya Degurechaff, and she speaks with a young girl's lisp and commands the army. Tanya used to be one of Japan's elite office workers, but because of a wrathful god, was reborn as a little girl. Tanya prioritizes optimization and career advancement above all, and she will become the most dangerous entity among the Imperial Army's sorcerers. 
 
(Source: Anime News Network)

__Height:__ 165 cm

[Website](https://www.tomatsuharuka.com/) | [Blog](http://ameblo.jp/tomatsuharuka-blog)

Tomatsu debuted in 2007, starring in Shinkyoku Soukai Polyphonica as Corticarte Apa Lagranges. Since then, she has had other major roles such as Lala Satalin Deviluke in To Love-Ru and Shiho Sannomiya in Zettai Karen Children. Before graduating from high school in 2008, she used to live in Ichimomiya city where she often took the shinkansen, traveling back and forth between Nagoya and Tokyo to attend recordings. On January 11, 2019, she married a man from outside the entertainment industry.

One of the members of the voice actress unit [Sphere](https://anilist.co/staff/103636).

__Non-anime roles:__
- Mary - Goddess of Victory: Nikke (VG)

[Instagram](https://www.instagram.com/marianadondi/) | [Twitter](https://twitter.com/MarianaDondi) | [Facebook](https://facebook.com/Mari.Dondi.11) | [IMDb](https://www.imdb.com/name/nm13295427)

Mariana Dondi Roque da Cruz is a Brazilian actress and voice actress. She is the daughter of the voice actor [Márcio Dondi](https://anilist.co/staff/176913/).

__Non-Anime Roles:__
~!- Storm Reid, Ariana Greenblatt, Lidya Jewett and Mckenna Grace (Most of the productions)
- Anais Watterson (2nd voice - 5th season onwards; The Amazing World of Gumball)
- Suzie Bingham (Stranger Things)
- Winnie (Hotel Transylvania 2 and Hotel Transylvania 3: Summer Vacation)
- Cassandra Cain (Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn))
- Maria (A Tale Dark & Grimm)
!~

[Twitter](https://twitter.com/AlondraSinTwitr) | [Instagram](https://www.instagram.com/alohidalgo/) | [Youtube](https://www.youtube.com/channel/UCfbvFDdB0bajYkDvouCE7EA)

**Alondra Patricia Hidalgo Quintero** is a Mexican voice actress. She is known for being the Latin American Spanish voice of Sam Puckett in _ICarly_ and _Sam & Cat_, Jade West in _Victorious_, Ginny Weasley in _Harry Potter_ and Valkyrie in the _Marvel Cinematic Universe_.
She's the recurring dub voice of Jennette McCurdy, Elizabeth Gillies, Taissa Farmiga and Tessa Thompson.

**Non-Anime Roles:**
- Mipha (The Legend of Zelda: Breath of the Wild & Hyrule Warriors: Age of Calamity)
- Kindred - Lamb form (League of Legends)

Tia Lynn Ballard is an American voice actress and ADR director affiliated with Funimation. Some of her notable roles are Zero Two from Darling in the Franxx, Kusano from Sekirei, Rin Ogata in Rideback.

In 1926, Tanya and her battalion return home from defeating remnants of the Republic's army. However, when they arrive they receive word of a massive mobilization near the border with the Russy Federation, so the Empire's army must prepare. At the same time, a multinational army under the leadership of the Allied Kingdom moves into the Russy Federation. The enemy of an enemy is a friend, but among the Allied Kingdom army is Mary Sioux, a girl who has sworn to exact justice against the Empire for the death of her father. 

(Source: Anime News Network)

[Twitter](https://twitter.com/nycolleyshon) | [Instagram](https://www.instagram.com/nycolleyshon/)

A Mexican voice actress. She is known for being the Latin American Spanish voice of Fionna in _Adventure Time_, Babs Seed in _My Little Pony: Friendship Is Magic_ and Riley Mathews in _Girl Meets World_.

She is the sister of [Dalí González](https://anilist.co/staff/206475/Dal-Gonzlez).