One actor with very obvious acne scars I really like is Laurence Fishburn. It seems like he, though he could probably pay for very extensive scar treatment has not chosen to do so. Needless to say he is successful in what he does and hired because of his skills, not his appearance. Well, he is not trying to win a beauty contest. Here is web site for more info http://www.laurence-fishburne.com/container.php?page=work
Just learned that the singer Seal's distinctive half moon-shaped scars came from a childhood disease, Lupus. The particular strain which Seal suffered from- Discoid lupus erythematosus- causes facial blistering, which when ruptured cause deep scarring. But they're not the result of ritual scarification, being bitten on the face by a dog or wolf, getting punched while wearing glasses, or being involved in a motorcycle accident. Seal himself says that after his trip to India he saw them as an omen of good fortune!