Four/Tobias???
He's one of my candidates for Four, but he's too old! (by casting standards, I mean. I think they'll be casting someone over 18 but not older than 21 or 22 like Shailene Woodley who has already signed up to play Tris).
There is another actor whom I have Googled days ago, but I have forgotten his name already as I have not heard of him before.
Anyway, thoughts? :)
(sorry for my terrible English. It is not my first language :p)