Actor Kevin Costner has had some very subtle plastic surgery performed sometime in the last decade. The aging actor had a hair transplant. It can be hard to tell when actors have hair transplants, since so many wear hairpieces either for movie roles, or in their everyday life. Costner’s transformation was easier to spot since the actor’s receding hairline was much documented. Sometime between 2006-2007 however, the hairline changed and the actor now has a full head of hair.