From Starwars.com:

"Looking to snap some memorable Star Wars pics at Comic-Con International next week? You'll have numerous opportunities thanks to the incredible work of costumed fans. There are a number of set photo-ops scheduled at the Lucasfilm Pavilion -- located at the front of Hall D on the Exhibit Hall floor.

Thursday, July 23
10:30 - 11 AM: Republic Cheerleaders
2:30 - 3 PM: The Old Republic Jedi and Sith
3:30 - 4 PM: Sith Cheerleaders

Friday, July 24
10 - 10:30 AM: Clone troopers
10:30 - 11 AM: Jedi
12 - 12:30 PM: The ladies of the ISO (read about them here).
1:15 - 2 PM: Slave Leias
2 - 2:30 PM: Rebel Pilots

Saturday, July 25
12:30 - 1 PM: Rebel Legion Troopers
1:15 - 1:45 PM: Mandalorian Mercs (Fett-style mercenaries)
3 - 3:30 PM: Stormtroopers
3:30 - 4 PM: Sith & Bounty Hunters

For a master schedule of Comic-Con Star Wars events, see this story here."