Comicon attracts thousands of people with an interest in comic books, science-fiction movies and television programs, sci-fi books, board games, and video games.
"It lets people have an imagination again. Even when they grow up and think I'm too grown up to be in costume, but you're never too old to go out and have fun," said Mike Arviz, who was dressed in costume and looked like the Star Wars bounty hunter character, Boba Fett.
The main attraction at this year's convention is a "Meet and Greet" with William Shatner. Attendees will have the opportunity to chat with the actor best known for his roles as Captain James T. Kirk, Denny Crane, and TJ Hooker.
There will be a Zombie Walk on Friday night from 7:30 - 8:30 at the corner of Monroe and 3rd Streets. The Zombie Beauty Pagent is also Friday night. It will be held at the Hyatt Regency Ballroom across from the Convention Center.
The Comicon organizers have also planned a "Geek Speed Dating" event and a "Geek Prom."
Tickets for the full weekend are $45. Single day passes cost $25 to $35 depending on the day. Children under 12 get in for free with a paying adult.