How Every Doctor Who Got Cast
13. Jon Pertwee
A former Naval intelligence officer, Jon Pertwee served alongside James Bond creator Ian Fleming, perhaps influencing his own 007-inspired take on the Doctor. When the Second World War ended, Pertwee embarked on a prolific career on stage and screen.
He was encouraged to enquire about playing the Doctor when it became clear that Patrick Troughton would be leaving. Producer Peter Bryant duly placed Pertwee's name on the list, right behind Oliver! star Ron Moody.
When Moody turned down the role – which was reportedly the single biggest regret of his career – Pertwee was a shoo-in for the Third Doctor.
Before Doctor Who, Pertwee was primarily known for playing comedy roles, appearing in multiple Carry On movies, and the beloved radio sitcom The Navy Lark. Mindful of this reputation, Pertwee was keen to play the Doctor as a more serious and heroic figure.
This is largely why the Third Doctor is more straight in his first season, but quickly softens, allowing Pertwee to lean into his talents as a comedian and raconteur.