Blonde Joan Castle was performing on radio when awarded a screen contract with Fox. She made her debut as one of Hardie Albright's society friends in Young Sinners. That was followed by quite a bit of posing for cheesecake layouts, but her roles in Mr. Lemon of Orange (1931), as El Brendel's pert niece, and Hush Money (1931), as George Irving's daughter, were not memorable and she returned to New York radio. Castle was back in front of the cameras as Allan Jones' fiancée in Universal's Sing a Jingle (1943), a musical comedy set in a radio station.