Mark Harmon, 1986
Long before Mark Harmon was Leroy Jethro Gibbs on NCIS, he was the hot doc of medical drama St. Elsewhere. His womanizing plastic surgeon, Dr. Robert Caldwell, left the show after nearly three seasons when he was one of the first major TV characters to contract HIV through unprotected sex. Mark continued to have a good year in 1986, starring in two TV movies, Prince of Bel Air and The Deliberate Stranger, as well as the film Let's Get Harry.