Yvonne Jaqueline Strzechowski (born 30 July 1982), known professionally as Yvonne Strahovski (), is an Australian actress. She is known for roles as Sarah Walker in the spy comedy drama series Chuck (2007–2012), Hannah McKay in the drama series Dexter (2012–2013) and Kate Morgan in the event series 24: Live Another Day (2014). Strahovski stars...