Milton "Gummo" Marx (October 23, 1892 – April 21, 1977) was an American vaudevillian performer, actor, comedian, and theatrical agent. He was the second youngest of the five Marx Brothers. Born in Manhattan, he worked with his brothers on the vaudeville circuit, leaving the act when he was drafted into the US Army in 1918 during World War I and replaced by his brother Zeppo. He had no taste for the theatre and became a successful businessman.
