2. Ken Jeong
A real-life physician who switched to acting, Ken Jeong lit up the Hollywood scene with outstanding performances in high-grossing comedies such as The Hangover and Knocked Up.
But before making it big, Jeong was a doctor with a master’s degree from the University of North Carolina. As a medical student, he performed stand-up comedy in local clubs at night. In 1995, the highly educated actor won a comedy contest and was encouraged to move to Hollywood.
He did so in 1998, but he didn’t give up on his medical career. For a certain period of time, Jeong worked as a doctor while also taking on minor television roles. He eventually played Dr. Ken, and from there we all know which career the highly educated actor chose.