Yvonne Strahovski stars as Sarah Walker in NBC's Chuck. While Sarah Walker is just an alias, Sarah is a CIA agent whose primary mission is to protect the Intersect, Chuck. Little is known about Sarah's past but we did meet her father who was a con-man played by guest star Gary Cole.
Sarah: Come any closer, I shoot!
Casey: You shoot him, I shoot you, I leave both your bodies here and go out for a late night snack. I'm thinking, maybe pancakes
Sarah: Wow, I didn't think people still named their kids Chuck. Or Morgan, for that matter.
Chuck: My parents were sadists, and carnival freaks found him in a dumpster.
Morgan: But they raised me as one of their own!