Harpo Marx va ser el segon dels cinc germans Marx. El seu veritable nom era Adolph Marx (Nova York, 23 de novembre de 1888 - Los Angeles, Califòrnia, 28 de setembre de 1964), encara que posteriorment se'l canvià per Arthur. La seva principal característica era la innocència i sinceritat, com li va dir al seu fill, "mai vaig viure una segona infància perquè mai he sortit de la primera".

Arthur Adolph "Harpo" Marx (November 23, 1888 – September 28, 1964) was an American comedian and film star. He was the second oldest of the Marx Brothers. His comic style was influenced by clown and pantomime traditions. He wore a curly reddish wig, and never spoke during performances (he blew a horn or whistled to communicate). Marx frequently used props such as a walking stick with a built-in bulb horn, and he played the harp in most of his films.

Description above from the Wikipedia article Harpo Marx, licensed under CC-BY-SA, full list of contributors on Wikipedia.