 | Groucho & Cavett (2022) as Self (archive footage) |
 | The Capote Tapes (2021) as Self (archive footage) |
 | Charlie Chaplin, le génie de la liberté (2020) as Self (archive footage) |
 | Mike Wallace Is Here (2019) as Self (archive footage) |
 | Game Changers (2018) as Self (archive footage) |
 | The Marx Brothers: Hollywood's Kings of Chaos (2016) as Self (archive footage) |
 | The Last Laugh (2016) as Self (archive footage) (uncredited) |
 | Hollywood Invasion (2011) as self |
 | Inside the Marx Brothers (2003) as Self (archive footage) |
 | Beatles: Big Beat Box (2001) as Self (archive footage) |
 | The Our Gang Story (1994) as Self (archive footage) |
 | The Unknown Marx Brothers (1993) as Self (archive footage) |
 | The One, the Only... Groucho (1991) as Self (archive footage) |
 | Hollywood Scandals and Tragedies (1988) as (archive footage) (uncredited) |
 | Classic Comedy Teams (1986) as Self (archive footage) |
 | Going Hollywood: The '30s (1984) as (archive footage) |
 | Hollywood Out-takes and Rare Footage (1983) as Self (archive footage) (uncredited) |
 | The Marx Brothers in a Nutshell (1982) as (archive footage) |
 | Oops, Those Hollywood Bloopers! (1982) as Self (archive footage) |
 | This Is Elvis (1981) as Self (archive footage) (uncredited) |
 | Salsa (1976) as Self (archive footage) |
 | That's Entertainment, Part II (1976) as (archive footage) |
 | Joys (1976) as Self |
 | Hooray for Hollywood (1976) as Self (archive footage) |
 | Brother, Can You Spare a Dime? (1975) as Self (archive footage) |
 | Hollywood: The Dream Factory (1972) as Self (archive footage) |
 | The Mad, Mad, Mad Comedians (1970) as Self (voice) |
 | Skidoo (1968) as God |
 | The Movie Orgy (1968) as Self (archive footage) |
 | The Legend of Marilyn Monroe (1966) |
 | Birds Do It (1966) as Man Looking Through Window At Melvin Flying |
 | The Big Parade of Comedy (1964) as One of The Marx Brothers (archive footage) (uncredited) |
 | The Hold-Out (1962) as John Graham |
 | Merrily We Roll Along: The Early Days of the Automobile (1961) as Self |
 | The Mikado (1960) as Ko-Ko |
 | The Incredible Jewel Robbery (1959) as Suspect in lineup |
 | The Story of Mankind (1957) as Peter Minuit |
 | Will Success Spoil Rock Hunter? (1957) as George Schmidlap (uncredited) |
 | Showdown at Ulcer Gulch (1956) as Stage conductor |
 | A Girl in Every Port (1952) as Benjamin Franklin 'Benny' Linn |
 | Double Dynamite (1951) as Emile J. Keck |
 | Mr. Music (1950) as Groucho Marx |
 | Love Happy (1949) as Sam Grunion |
 | Copacabana (1947) as Lionel Q. Deveraux |
 | A Night in Casablanca (1946) as Ronald Kornblow |
 | The Big Store (1941) as Wolf J. Flywheel |
 | Go West (1940) as S. Quentin Quale |
 | A New Romance of Celluloid: The Miracle of Sound (1940) as Self |
 | Hollywood: Style Center of the World (1940) as Self |
 | At the Circus (1939) as Attorney J. Cheever Loophole |
 | From the Ends of the Earth (1939) as Self |
 | Room Service (1938) as Gordon Miller |
 | Sunday Night at the Trocadero (1937) as Groucho Marx |
 | A Day at the Races (1937) as Dr. Hugo Z. Hackenbush |
 | Yours for the Asking (1936) as Sunbather (uncredited) |
 | A Night at the Opera (1935) as Otis B. Driftwood |
 | Hollywood on Parade No. B-10 (1934) as Self |
| | Hollywood on Parade No. B-5 (1933) as Self (archive footage) (uncredited) |
 | Duck Soup (1933) as Rufus T. Firefly |
 | Groucho Marx's Home Movies (1933) as Self |
 | Wonderland of California (1933) as Self |
 | Horse Feathers (1932) as Professor Wagstaff |
 | I'll Say She Is (1931) as Caesar's Ghost |
 | Monkey Business (1931) as Groucho |
 | The House That Shadows Built (1931) as Caesar's Ghost |
 | Animal Crackers (1930) as Captain Jeffrey T. Spaulding |
 | The Cocoanuts (1929) as Hammer |
 | Humor Risk (1921) as Villain |
 | 29/73 Ready-Made Writer |
 | The Life of Riley Story |
 | The King and the Chorus Girl Writer |
| | Groucho Marx's Home Movies Director |
