Comic book aficionados, TV fans and sci-fi enthusiasts will unite for four days of non-stop fun and entertainment at this year's Comicpalooza in Houston. Scheduled to be held at George R. Brown Convention Center May 22-25, the annual comic con will feature over 1,000 hours of entertainment, including performances, Q&As, workshops and celebrity appearances. Colbie Smulders ("The Avengers"), Jeremy Renner ("The Avengers") and Hayley Atwell ("Marvel's Agent Carter") are just a few of the stars you'll have a chance to see at Comicpalooza 2015, Texas' premier comic convention.