While not as high-profile as Don Knotts I guess, Darren McGavin, probably best known to many, certainly here, as the father from A Christmas Story also died. CNN.com
We watch that movie every year. Any one remember the made for TV 4th of July movie with all the same characters? The Ralphie character was older and played by a different actor but McGavin still played the dad. I wish that would come out on DVD.
My dad and I always especially liked the part where the narrator/Ralphie talked about how the old man "wove a tapestry of obscenities that as far as we know is still hanging in space over Lake Michigan"...as we both knew it applied to him, too. "Now, I had heard that word at least ten times a day from my old man. He worked in profanity the way other artists might work in oils or clay. It was his true medium; a master."