John Ratzenberger as Cliff Clavin on 'Cheers' in the 1980s Cheers wouldn’t have been the same without Cliff Clavin — and the beloved character wouldn't exist without John Ratzenberger's quick thinking ...
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 ...
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