Some celebrities are known just as much for their ageless appearance as they are for their talent. And lately, Paul Rudd has been getting a lot of long-overdue attention for his significant contributions everyone's befuddlement over how some celebrities seem to have entered a state of suspended skin aging around 30 ? especially considering he just turned 50 on April 6. "I'm 80 years old on the inside. Chances are, Rudd simply hit the genetic lottery and takes good care of himself.