From CNN.COM:

Letterman’s Larry “Bud” Melman actor dies

NEW YORK (AP) — The balding, bespectacled nebbish who gained cult status as the oddball Larry “Bud” Melman on David Letterman’s late-night television shows has died after a long illness.

Brooklyn-born Calvert DeForest, who was 85, died Monday at a hospital on Long Island, the Letterman show announced Wednesday.

He made dozens of appearances on Letterman’s shows from 1982 through 2002, handling a variety of twisted duties: singing a duet with Sonny Bono on “I Got You, Babe”; doing a Mary Tyler Moore impression during a visit to Minneapolis, Minnesota, where her 1970s show was set; handing out hot towels to arrivals at New York’s Port Authority Bus Terminal.

Cue cards were often DeForest’s television kryptonite, and his character invariably appeared in an ill-fitting black suit behind thick, black-rimmed glasses.

“Everyone always wondered if Calvert was an actor playing a character, but in reality he was just himself — a genuine, modest and nice man,” Letterman said in a statement. “To our staff and to our viewers, he was a beloved and valued part of our show, and we will miss him.”

(more here)