Taxi

Reverend Jim Ignatowski (Christopher Lloyd) (1979-1983) - A burned-out relic of the '60s, Jim lives in a world of his own. He was once a hard-working, serious student at Harvard University, with an extremely wealthy father (Victor Buono), but one bite of a drug-laden brownie was enough to get him hooked and send him into a downward spiral. (His last name was originally Caldwell; he changed it to Ignatowski, thinking that the backward pronunciation of that name was "Star Child".) The cabbies help him pass a written exam to become one of them, in a particularly memorable episode. He occasionally exhibits unexpected talents, such as the ability to play the piano masterfully. TV Guide placed Ignatowski 32nd on its list of the 50 greatest TV characters of all time.