I hanker for a hunka cheese

A man named Lennie Weinrib, who was the voice of H.R. Pufnstuf (also the main writer of the series)and Scrappy Doo among others, and appeared on-camera as Magic Mongo, died yesterday.

Mark Evanier takes note of his passing, and provides links to video clips that most people who watched '70s Saturday morning TV will remember, here and here.