Over at Mark Evanier's site (a link to which you'll find over on the side) he has posted several items, including video links, about his friend Lennie Weinrib. If you click on the above headline you'll get over to the Internet Movie Database page which has a partial listing of Mr. Weinrib's career. Looking at it was like getting a flashback to a lot of my childhood. As a writer/performer on many of the Sid & Marty Krofft's shows his voice (and he seemed to have dozens of them) was heard by all of us kids.
Mark also mentions, with another link, that Mr. Weinrib was the voice of "Timer" a character used in a number of nutrition cartoons which ran on ABC for seemingly decades. The spot Mark uses is about cheese. There are still times when I find myself singing part of the tune ("I hanker for a hunk of cheese!").
My sympathy and condolences go out to Mr. Weinrib's family and many friends.