Alison Ruth Viktorin (née Retzloff; born February 1, 1981) is an American retired voice actress, her most notable role being Conan Edogawa in the detective series Case Closed. She also voiced Kuroko Shirai in A Certain Magical Index and its spinoff, A Certain Scientific Railgun, Chiharu Ando in Chio's School Road, Suo Pavlichenko in Darker than Black, Amy in Burst Angel, Kobato Hasegawa in Haganai and QT in Space Dandy.
Alison Ruth Retzloff was born on February 1, 1981, to Sally (née Simonsen) and Albert Retzloff. In 2003, she graduated from California Lutheran University earning a BA in drama. Retzloff married Dustin Kayne Viktorin of Euless, Texas, on August 27, 2005, in Fredericksburg, Texas.
Viktorin has provided voices for English-language versions of many anime dubs, such as the title character in ', Chiharu Ando in Chio's School Road, Suo Pavlichenko in Darker than Black, Kobato Hasegawa in Haganai series, Kyo Soma in Fruits Basket, Kuroko Shirai in A Certain Magical Index and A Certain Scientific Railgun series, Amy in Burst Angel, Shelia in Fairy Tail, Shingo Jinnouchi and Ame in the Mamoru Hosoda anime films Summer Wars and Wolf Children, and Gasper Vladi in the High School DxD series.
She has also done commercials and modeling in the Dallas/Fort Worth area.
In video games, she voiced Jing Wei, a playable God in Smite.
In 2021, Viktorin announced that she would be retiring from anime voice acting in light of political disagreements on social media during the January 6 United States Capitol attack, as well as the difficulty of recording from home during the COVID-19 pandemic.