Milton "Gummo" Marx (October 23, 1893 – April 21, 1977) was an American vaudeville performer, criminal investigator and theatrical agent. He was the second youngest of the five Marx Brothers. Born in New York City, he worked with his brothers on the vaudeville circuit, but left acting when he was drafted into the U.S. Army during World War I (years before his brothers Chico, Harpo, Groucho and Zeppo began their film career).