Stana: (on her character in Castle personality) She's a woman, which means that she's inherently strong. There are all these other wonderful facets to her, as well: hope, sometimes girlish hope; self-doubt; confidence. There's a Joan of Arc quality to her, I suppose. There are different ways of communicating with people in different scenarios. In the workplace, you can really only be one kind of person, whereas with Castle, she has to maintain a certain sense of decorum for right now, but as we move forward and he gets to know her more, we get to see her other layers.