Johnny Crawford – 74
He was one of the most well-known child actors in his time, and as it turns out, Johnny Crawford still has the same charisma in his 70s. Even though there have recently been some rumors stating that he was diagnosed with Alzheimer’s disease, Johnny made a strong comeback in 2019 by starring in Bill Tilghman and the Outlaws. As a teen, not only was he starring in series like The Rifleman but had released numerous singles throughout the ‘60s. Not counting his comeback, the last time he made an on-camera appearance was in 1999 in the film The Thirteenth Floor.