(Source: Pinterest/M. Lucia Hernandez Guido)
6. Gary Cooper
So old school! Gary Cooper's illustrious Hollywood career spanned over thirty years, starting from the end of the silent film era all the way through the Golden Age. He often played the classic American hero, in films like 1943's For Whom the Bell Tolls and, in post-war years, The Fountainhead.

Photo found here.