Cliff was in all but one or two episodes of Cheers. He was not a character in the original pilot and Ratzenberger was initially hired as a guest star before they made him a regular. The story goes ...

Jeopardy! fans are reeling after a Final Jeopardy wager brought back memories of Cliff Clavin, the beloved mailman barfly from Cheers. During an episode of the iconic sitcom, Cliff (John Ratzenberger) ...

Do you remember Cliffy? He was the iconic postal worker on "Cheers," the sitcom set in Boston. Cliff Clavin is the very definition of a Mr. Know It All. There was nothing that Cliff didn’t have an ...

The character of Cheer’s customer, know-it-all mail carrier Cliff Clavin, was portrayed by actor John Ratzenberger. The trivia espousing postman was often shown interacting with friend and fellow bar ...