Sarah was first approached by the CIA when she was 18 and has been entangled in the world of espionage since. She is an extremely capable and dangerous agent known as the "wild card enforcer" of the CIA. She lives for the job and is focused on completing the mission no matter the cost. She is guarded, professional and capable of extreme acts of manipulation. She masks her emotions and hides her past but deep down she's surprisingly gentle and kind. #SarahWalker #YvonneStrahovski #Chuck