[He knows Anna. How does he know Anna? As Kristoff gets to his feet, Hans backs up frowning slightly, hands in a position that totally implies 'whoa dude, this isn't my fault.']

I didn't choose to be here. Believe me, if I had my way, I'd be back in Arendelle. [He would easily take his soon-to-be kingdom over this place.] And if I could go back, I would. But nobody here seems to be helpful in that regard.