Bob Newhart – 91 years old
You will likely recognize Bob Newhart for his recurring role as Professor Proton in both The Big Bang Theory and Young Sheldon. However, his career actually started in the ‘50s, 1958 to be exact when he made waves with his stand-up monologue, The Button-Down Mind of Bob Newhart. The “deadpan” style of comedy is actually credited to him, as Bob went on to perform in The Bob Newhart Show, Newhart, and many other.