19 Stars You Never Knew Were That Old: Good Genes or Good Docs?
It's no secret that actors are often booked to play characters of much younger ages. Kerr Smith was 26 when he played 16 year old Jack McPhee on Dawson's Creek.
His incredibly youthful appearance (which has since become a full head of gray hair by 40) worked in his favor. Other celebrities have ridden a similar wave of good fortune.