Matt Smith Roams the Comic-Con Halls Before Sunday's Panel

Matt Smith bares his toned arms while walking around the grounds during day one of 2013 Comic-Con on Thursday (July 18) at the Convention Center in San Diego, Calif.

The 30-year-old actor will be joined by his co-star Jenna-Louise Coleman for the Doctor Who panel this Sunday in Hall H. Fans are expected to line up the night before to get a seat!

PHOTOS: Check out the latest pics of Matt Smith

Matt revealed last month that he will be leaving his beloved series Doctor Who after this year’s Christmas special.