Hal Linden and Peter Graves both played clarinet and Fred MacMurray played sax, all in well-known Big Bands. Clint Eastwood tried to be professional jazz piano player at one time but wised-up. Burl Ives and Alan Arkin, on the other hand, were folkies and they really could act. One or both were nominated for the Oscar. And then there is Lou Gossett, Jr., etc....