San Diego Comic-Con 2013, which runs through July 21, kicked off yesterday with its preview night event, and attendees wasted no time getting their cosplay on.

Besides the celebrities who show up to promote their work, and the guaranteed announcements about anticipated movies and TV shows, marveling at dedicated fans who dress up as their favorite fictional characters is the best part of Comic-Con. Some (if not all) people go all out -- and we love it.

Take a look at our gallery of the cosplay action at this year's Comic-Con, below!

2013 Comic-Con Movie Panel Highlights: Thor and Spider-Man
categories Comic-Con