Well, if you've heard Pink Floyd's Another Brick In The Wall you've heard Chris. He's the voice that says "If you don't eat yer meat, you can't have any pudding. How can you have any pudding if you don't eat yer meat?".
But his real occupation has been as roadie/production manager for a bunch of artists for a bunch of years. Including Steely Dan.
Dinky Dawson writes about Chris in this article. Well worth checking out.