I always enjoyed watching (and listening to) Alan Kalter, on David Letterman's Late Show, on CBS.
He was the program's talented (and funny) announcer--from the fall of 1995, until the show left the air in May of 2015. He was also regularly featured in comedy segments on the program.
Mr. Kalter died this past Monday, at age 78.
Here is an obituary, from The New York Times:
