Cliff Clavin
| 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 |
| Family | Esther Clavin (mother) Cliff Clavin, Sr. (father) |
| Nationality | American |
Clifford C. Clavin, Jr. (born 1947 or 1949) is a fictional character on the American television show Cheers played by John Ratzenberger. A postal worker, he is the bar's resident know-it-all. 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.