Lawrence Randall Grossmith was an English actor, the son of the Gilbert and Sullivan performer George Grossmith and the brother of the actor-manager George Grossmith Jr.

George Grossmith was an English comedian, writer, composer, actor, and singer. His performing career spanned more than four decades. As a writer and composer, he created 18 comic operas, nearly 100 musical sketches, some 600 songs and piano pieces, three books and both serious and comic pieces for newspapers and magazines.