Each guests schedule is different. Some are only there one day, others are there multiple days. You can see each celebrity's schedule when you visit the Master Guestlist 2017 - http://saltlakecomiccon.com/guests/
Find the celebrity guest of your choice and click over their face. You will be taken to their Bio page, where all of their information is listed, including the days they will be appearing, Autograph, Photo Op, and Panel information.
You can also see a list of all Celebrity Photo Ops available for sale on our Photo Ops page - http://saltlakecomiccon.com/photo-ops/