Sasha (サーシャ, Sāsha?) is one of the 10,000 players who were trapped in the death game Sword Art Online. Sasha takes care of the younger players of SAO in the Town of Beginnings. After being freed from SAO, she eventually joins ALfheim Online.
Sasha is a young woman with brown hair and green eyes. She wears rimless, oval glasses. In Sword Art Online, Sasha wears a long navy blue dress with a white collar.
Sasha is a protective and caring person who is willing to take in young players, who are lost and unwilling to fight, and defend them from people who abuse them, such as The Army.
She resided on the 1st Floor and took care of the younger players, since most of them had fallen into psychological trauma once the death game started. She lived with them in a church, with older children protecting it and going out to the fields to earn enough income to pay for shelter and food.
Kirito, Asuna and Yui encounter her in the aforementioned church while looking for information about Yui's guardians. She told them that she could not recall ever seeing Yui amongst her daily walks around the 1st Floor looking for young players in need. Their conversation was interrupted midway when they learned that several children were obstructed by The Army and Sasha decided to go there to help the children, while Kirito and Asuna offered their help
After the incident with The Army, Sasha invited Asuna, Kirito and Yui into the church that she and the children she took in resided in.
At the end of the Fairy Dance arc, she attended the SAO clearing party along with other SAO survivors. In Episode 25 of the anime, Sasha is shown as a Pooka flying with the rest of the SAO survivors to the New Aincrad.