Henry Cass (24 June 1903 – 15 March 1989) was a British director, particularly prolific in film in the horror and comedy genres. Previously an actor, he was also a prolific stage director of classical theatre at the Old Vic in the 1930s. In 1923, Lee DeForest filmed Cass for a short film Henry Cass Demonstration Film made in DeForest's Phonofilm sound-on-film process. The film was previewed at the Engineers Society of New York on 12 April 1923, and premiered at the Rivoli Theatre in New York on 15 April 1923 with 17 other short Phonofilms. Cass was married to the actress Joan Hopkins. They had one child, Martin Cass.