Mary Ellis was an American actress and singer appearing on stage, radio, television and film, best known for her musical theatre roles, particularly in Ivor Novello works. After appearing with the Metropolitan Opera beginning in 1918, she acted on Broadway, creating the title role in Rose-Marie. In 1930, she emigrated to England, where she gained additional fame and continued to perform into the 1990s. She also became known for film roles, including in The 3 Worlds of Gulliver in 1960.

Ivor Novello was a Welsh actor, dramatist, singer and composer who became one of the most popular British entertainers of the first half of the 20th century.