| Cliff Clavin | |
|---|---|
| Cheers character | |
 from "Please Mr. Postman" (episode 158, 1989) | |
| First appearance | Cheers: "Give Me a Ring Sometime" (season 1, episode 1) |
| Last appearance | Frasier: "Cheerful Goodbyes" (season 9, episode 21) |
| Portrayed by | John Ratzenberger |
| In-universe information | |
| Gender | Male |
| Occupation | Mail carrier[1] |
| Family | Esther Clavin (mother) Cliff Clavin, Sr. (father) |
| Nationality | American |
Clifford C. Clavin, Jr.[2] (born 1947[3] or 1949) is a fictional character on the American television show Cheers played by John Ratzenberger.[4] A postal worker, he is the bar's resident know-it-all and was a contestant on the game show Jeopardy! Cliff was not originally scripted in the series' pilot episode, "Give Me a Ring Sometime", but the producers decided to add a know-it-all character and Ratzenberger helped flesh it out. The actor made guest appearances as Cliff on The Tortellis, St. Elsewhere, Wings, and Frasier.
- ^ Reinhold, Robert (April 2, 1993). "One Last Round as 'Cheers' Finale Is Taped". The New York Times. Retrieved August 16, 2010.
- ^ Bjorklund, Dennis A (September 2014). "Cliff Clavin". Cheers TV Show: A Comprehensive Reference. p. 241. ISBN 9780967985237. Retrieved July 8, 2014.
- ^ "A Kiss Is Still a Kiss". Cheers. Season 6. Episode 10.
- ^ Steinberg, Jacques (May 21, 1993). "Hoisting a Few to Say Goodbye to Themselves; At Tavern in Larchmont, the Appeal of 'Cheers' Can Be Seen in the Barroom Mirror". The New York Times. Retrieved August 16, 2010.