Graham Chapman, doctor:
Before Monty Python success, Chapman wrote for the BBC and worked on radio and TV series, with John Cleese and other future collaborators. But even before the entertainment business, the British actor and writer studied at the Barts and The London School of Medicine and Dentistry. He met Cleese at this time, and together, the two wrote sketches together. While some sources say that Chapman did not practice medicine professionally, others say that he was a doctor for a few years before turning to show business full time.
