Cisco Houston played a few bit parts in some westerns; he certainly looked the part of a Hollywood actor. Does anyone know what the films were and has anyone ever seen them or spotted him.
The Mick Jagger film about Ned Kelly in some lists is reckoned to be the worst film ever made!
Fred Astaire - you don't actually notice his acting, his dancing is so superb. Ditto with Bing and singing.
Cher - wonderful in 'Tea with Mussolini'
Doc John