According to a tweet from executive producer Laurie Zaks, Castle will be making an appearance at this year’s San Diego Comic Con. There will be a panel on Sunday, July 25th, from 10:30 AM to 11:30 AM. Unfortunately, Comic Con is already all sold out. If only, we could have known this earlier. Maybe if some of you were already going before this announcement, you could give us a full scoop. Hopefully there will be photos to share after the event! You will updated with any other information if/when it becomes available.