Mark Harmon – 69

Mark Harmon portrays one of the most popular TV icons of today, Special Agent Leroy Jethro Gibbs on NCIS, of which he is also the executive producer. His steely blue eyes have enamored both the young and the old, but he has long since made his mark on TV. Harmon is not just an actor; he was also a football player during his younger years with a communication degree. His love for acting landed him appearances in TV series in the ‘70s like in Laverne & Shirley, Ozzie’s Girls, as well as Flamingo Road.

Harmon did take a break from his TV shows to make movies. He even got to work with the legendary Sean Connery. However, his love for TV was evident and he soon appeared in Reasonable Doubts and Charlie Grace. It was the medical drama series Chicago Hope that cemented him as a TV star to watch out for.