by Celedam » Sat Jun 14, 2014 11:42 pm
^ Regarding Tommen, remember that all of characters have been aged up about three years for the show, and then some of the characters are being played by even older actors. That makes a huge difference in Tommen's case: you have a 16-year-old playing 12-13 aged up from 9-10.
(I think they goofed a bit with Sansa, who is the one character who has explicitly stated her age on the show, when Tyrion asked her on their wedding night.)