They keep changing the celebrity autograph area layout and this year, well, it was impossible to get any pics of the celebs unless I went to their panel. I went to 3 panels: Matt Smith, Doctor Who (Matt & Arthur) and Stephen Amell. My photo ops were with them as well.
Matt Smith & Arthur Darvill (I find Arthur ridiculously good looking that it annoys me)
Stephen Amell (total sweetheart)