From Wikipedia, the free encyclopedia. Yvonne Strahovski (born Strzechowski on 30 July 1982) is an Australian actress. Born in Australia to Polish immigrant parents, Strahovski speaks Polish and English. After graduating from University of Western Sydney she featured in a number of Australian television shows before winning the starring role of Sarah Walker in the American television series Chuck. Description above from the Wikipedia article Yvonne Strahovski, licensed under CC-BY-SA,full list of contributors on Wikipedia.