The term 'Silent Film Star' refers to a famous actor or actress from the era of silent films. Harpo (5 letters) and Harpo Marx (9 letters) are two of the most well-known silent film stars. Harpo was an American comedian, actor, mime artist, and musician, best known as a member of the Marx Brothers. Harpo Marx was his stage name, and he was known for his trademark curly hair, horn-rimmed glasses, and a top hat. He was also known for his ability to play the harp.