This definition involves two central dimensions of compassion. The first is known as the psychology of engagement and involves sensitivity to and awareness of the presence of suffering and its causes.
Clifford C. Cliff Clavin, Jr. (born 1947 or 1949), is a fictional character on the American television show Cheers co-created (and played) by John Ratzenberger. A postal worker, he is the bar's know-it-all and was a contestant on the game show Jeopardy!
Original main characters. Before the Cheers pilot, Give Me a Ring Sometime, was finalized and then aired in 1982, the series originally consisted of four employees of Cheers, the bar, in the original script. There was neither Norm Peterson nor Cliff Clavin, regular customers of Cheers; later revisions added them as part of the series.