Hoey's Broadway credits include Hassan (1924), Katja (1926–1927), Green Waters (1936), Virginia (1937), Empress of Destiny (1938), The Circle (1938), Lorelei (1938), The Burning Deck (1940), Heart of a City (1942), The Haven (1946), and Getting Married (1951).
Issue No. 45 of "Films of the Golden Age" magazine features an interview with Hoey's son Michael A. Hoey (1934–2014), who extensively discusses Dennis Hoey's early life, career, marriages and death. In his book, "Elvis, Sherlock and Me: How I Survived Growing Up in Hollywood" (Bear Manor Media-2007) he discusses his father's career and their sometimes turbulent relationship.
Hoey "appeared frequently in London" stage productions, including those of Sydney Carroll's Shakespearean repertory company. He played Mr. Rochester opposite Katharine Hepburn in the American production of Helen Jerome's stage adaptation of Jane Eyre. He also wrote a play called The Haven and toured in it in 1946 with Melville Cooper, Valerie Cossart and Viola Roache.
