The Youngest Profession is a 1943 film, directed by Edward Buzzell, it contains cameos by which American actor, and a major star at Metro-Goldwyn-Mayer?
William Powell William Horatio Powell (July 29, 1892 – March 5, 1984) was an American actor. A major star at Metro-Goldwyn-Mayer, he was paired with Myrna Loy in 14 films, including the "Thin Man" series based on the Nick and Nora Charles characters created by Dashiell Hammett. Powell was nominated for the Academy Award for Best Actor three times: for "The Thin Man" (1934), "My Man Godfrey" (1936), and "Life with Father" (1947).
Kathryn Grayson Kathryn Grayson (February 9, 1922 – February 17, 2010) was an American actress and coloratura soprano. From the age of twelve, Grayson trained as an opera singer. She was under contract to Metro-Goldwyn-Mayer by the early 1940s, soon establishing a career principally through her work in musicals. After several supporting roles, she was a lead performer in such films as "Thousands Cheer" (1943), "Anchors Aweigh" (1945) with Frank Sinatra and Gene Kelly, and "Show Boat" (1951) and "Kiss Me Kate" (1953), both with Howard Keel.