Dr. Jack Shephard – Lost

Played by 57-year-old actor Matthew Fox for a total of 113 episodes air from 2004 to 2010, Dr. Jack Shephard from ‘Lost’ is one of the fan-favorite on-screen doctors of all time. In the series revolving around a group of people who are left cast away in an island after a plane crash, Fox’s character is crucial in the survival attempts, as he can assist the wounded and is able to give instructions on what to do, thanks to his medical background.