Yvonne Jaqueline Strzechowski, better known by the stage name Yvonne Strahovski, is an Australian actress.
Strahovski was born in Werrington Downs, New South Wales. Her parents had emigrated from Tomaszów Mazowiecki in Poland. She is best known for portraying CIA Agent Sarah Walker in the NBC television series Chuck (2007–2012). Strahovski speaks fluent Polish and employed it in a brief exchange with a colleague in the Chuck episode "Chuck Versus the Wookiee" and again in the episodes "Chuck Versus the Three Words" and "Chuck Versus the Honeymooners". Although she portrays an American in the series, she briefly spoke in a "Hollywood" Australian accent in the episode "Chuck Versus the Ex".
Strahovski is also well known for portraying Hannah McKay in the Showtime series Dexter (2012–2013), for her role in the 2014 fantasy action film I, Frankenstein and also as Peg Mooring in the thrilling action/adventure movie; Lego: The Adventures of Clutch Powers (2010). She is also the voice and model of Miranda Lawson in the Mass Effect video game series. Yvonne has recently appeared as CIA agent Kate Morgan in 24: Live Another Day.