James William Flavin Jr. was an American character actor whose stage, film, and television career lasted some forty years.

The Airmail Mystery is a 1932 Universal pre-Code movie serial directed by Ray Taylor, written by Ella O'Neill, starring James Flavin and Wheeler Oakman, and featuring Al Wilson doing the aerial stunts. The Airmail Mystery was Universal's first aviation serial that set the pattern for the aviation serials and feature films to follow. The film also marks the film debut of James Flavin. The Airmail Mystery is considered a lost film.