Ashely Judd Shares Picture of Divergent Posters Signed by the Cast

Ashley Judd tweeted this picture of signed Divergent posters: "I accidentally signed poster of @Divergent twice: That double or halve its value? Can you name all the signatures?"
Have a go, see if you can figure which signature belongs to which cast member. Meanwhile, we'll be plotting a way of getting our hands on one of these..