Zeppo Marx was an American actor and comedian, best known as the fourth brother in the famous comedy group, the Marx Brothers. Born on February 25, 1901, he initially worked as a straight man in the group's performances, providing a contrast to the more eccentric characters played by his brothers, including Groucho, Harpo, and Chico. In addition to his work in film and theater, Zeppo was also a successful businessman and later became an agent for the Marx Brothers. He appeared in several of their classic films, including Duck Soup and A Night at the Opera, before leaving the act in the late 1930s to pursue other interests.