Gummo Marx of his brothers to whom he was closest, Groucho replied, "Gummo. He's a nice man, and that's more than I can say for Zeppo". Gummo Marx Milton "Gummo" Marx (October 23, 1893 – 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, 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 careers). Marx
Harpo Marx was occasionally referred to by the other Marx Brothers, who were careful to imply that his character's not speaking was a choice rather than a disability. They would make joking reference to this part of his act. For example, in "Animal Crackers" his character was ironically dubbed "The Professor". In "The Cocoanuts", this exchange occurred: In later films, Harpo was put into situations where he would repeatedly attempt to convey a vital message to another person, but only did so through nonverbal means, usually by whistling or pantomime. These scenes reinforced the idea that the character was unable to speak.