Jerry Lewis was really touch and go there for a while. He has severe back issues (same problem my wife has actually) that nearly caused him to kill himself. They he got put on steroids that caused him to bloat up, and now he seems fine. Odd.
I'd have to give a shout out to William Shatner. He's like 81 and can probably outrun me. He's also very active on Twitter and tours the country (not to mention still doing TV and movie roles).
Shatner has a farm about 45 miles from mine.
He was at Jimmy D's (Midway, KY) one night while we were there.
Jimmy was fawning over him to the point I think he was getting annoyed, Jimmy asked if we wanted to meet him, but I didn't want to add to his discomfort.
He is still very active, but he looks like he is 110 years old! (Not saying that
I don't!)