Which Monty Python member was a qualified medical doctor?

Which Monty Python member was a qualified medical doctor? Graham Chapman. Before becoming a comedian, Chapman studied medicine at Emmanuel College, Cambridge, and continued his training at St Bartholomew's Hospital Medical College in London.

Chapman joined the Cambridge Footlights while studying, where he began writing and performing with John Cleese. He eventually completed his medical studies and became professionally registered, meaning he was qualified to practise medicine. Comedy ultimately won out, and he chose a career in writing and performance rather than working as a full-time doctor.

His medical background remained part of his creative life. Chapman and Cleese wrote for the television sitcom Doctor in the House and its follow-up Doctor in Charge, giving Chapman a chance to turn his knowledge of medicine into comic material. His scientific education also helped distinguish him from the other Pythons, although he was best known for playing authority figures and eccentric characters.

Chapman became one of Python's principal performers and played King Arthur in Monty Python and the Holy Grail and Brian Cohen in Life of Brian. The phrase “qualified medical doctor” refers to his completed training, not to a recurring medical role in the troupe.