Check out Camp Destiny (usually offered at Oglethorpe University).  A warm, welcoming camp run by the Atlanta Workshop Players.  The focus is on being yourself, gaining confidence in front of an audience and having fun with theatre....with a bit of juggling and stage combat thrown in.  My son loved his one-week session so much he wanted to go for the overnight one this year.  At the end of camp scouts visit and interview kids who may be interested acting opportunities that pay (read: television)  Regardless, this camp is a refreshing alternative to the endless array of sports camps.