54. Lorne Michaels
Era: 1975-1980; 1985-present
Mysteriously, there's no "Best of Lorne Michaels" DVD compilation. But the boss is always a welcome presence whenever he shows up, and there aren't many performers (or bosses) you can say that about over the course of a 40-year run. He wrote himself one of the debut season's defining moments, offering the Beatles a check ("three thousand dollars!") to reunite. He had no idea Lennon and McCartney were watching together at the Dakota.