Julius Henry "Groucho" Marx (October 2, 1890 – August 19, 1977) was an American comedian and film and television star. He was known as a master of quick wit and widely considered one of the best comedians of the modern era. His rapid-fire, often impromptu delivery of innuendo-laden patter earned him many admirers and imitators.

He made 13 feature films with his siblings the Marx Brothers, of whom he was the third-born. He also had a successful solo career, most notably as the host of the radio and television game show You Bet Your Life.