Clifford C. Clavin, Jr. is a fictional character on the American television show Cheers played by John Ratzenberger. A postal worker, he is the bar's know-it-all and was a contestant on the game show Jeopardy!
Cliff Clavin has been suggested to play 7 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.