Riley appeared in hundreds of TV shows and made some movies as well, but will always be remembered for one role that never be forgotten.
That role was of Elliot Carlin on the Bob Newhart Show. He appeared on the show 49 time as Carlin, a very odd and very strange patient of Newhart.
I also remember Riley from one of my favorite films, "ATTACK OF THE KILLER TOMATOES" which is a film he fits perfectly into. A comedic genius with perfect timing and deadpan delivery. RIP Jack.