Thedala Visin was a mercenary affiliated with the Livis Company, a private contractor that served as a front for Eclipse. In 2181 CE, she and her lover Mirole T'Shar accompanied Arine Leoptos and Emmanuelle Sharon to the city of Nairida, on Zak'kon, to search for their missing colleague, Siani T'Nair. During the mission, Visin, T'Shar, and Leoptos were captured by batarians, and were subsequently killed.