| Movie | 1933 | Duck Soup | Rufus T. Firefly | |
| Movie | 1968 | The Movie Orgy | Self (archive footage) | |
| Movie | 1929 | The Cocoanuts | Hammer | |
| Movie | 1939 | At the Circus | Attorney J. Cheever Loophole | |
| Movie | 1940 | Go West | S. Quentin Quale | |
| Movie | 1937 | A Day at the Races | Dr. Hugo Z. Hackenbush | |
| Movie | 1946 | A Night in Casablanca | Ronald Kornblow | |
| Movie | 1968 | Skidoo | God | |
| Movie | 1941 | The Big Store | Wolf J. Flywheel | |
| Movie | 1949 | Love Happy | Sam Grunion | |
| Movie | 1932 | Horse Feathers | Professor Wagstaff | |
| Movie | 1930 | Animal Crackers | Captain Jeffrey T. Spaulding | |
| Movie | 1931 | Monkey Business | Groucho | |
| Movie | 2001 | Beatles: Big Beat Box | Self (archive footage) | |
| Movie | 1957 | The Story of Mankind | Peter Minuit | |
| Movie | 1957 | Will Success Spoil Rock Hunter? | George Schmidlap (uncredited) | |
| Movie | 1935 | A Night at the Opera | Otis B. Driftwood | |
| Movie | 1938 | Room Service | Gordon Miller | |
| Movie | 1994 | The Our Gang Story | Self (archive footage) | |
| Movie | 1947 | Copacabana | Lionel Q. Deveraux | |
| Movie | 1951 | Double Dynamite | Emile J. Keck | |
| Movie | 1952 | A Girl in Every Port | Benjamin Franklin 'Benny' Linn | |
| Movie | 1982 | The Marx Brothers in a Nutshell | (archive footage) | |
| Movie | 1931 | I'll Say She Is | Caesar's Ghost | |
| Movie | 1972 | Hollywood: The Dream Factory | Self (archive footage) | |
| Movie | 1950 | Mr. Music | Groucho Marx | |
| Movie | 1982 | Oops, Those Hollywood Bloopers! | Self (archive footage) | |
| Movie | 1983 | Hollywood Out-takes and Rare Footage | Self (archive footage) (uncredited) | |
| Movie | 2016 | The Last Laugh | Self | |
| Movie | 1956 | Showdown at Ulcer Gulch | Stage conductor | |
| Movie | 1986 | Marilyn Monroe: Beyond the Legend | Self (from Love Happy [1949]) (archive footage) | |
| Movie | 1933 | Groucho Marx's Home Movies | Self | |
| Movie | 1984 | Going Hollywood: The '30s | (archive footage) | |
| Movie | 1931 | The House That Shadows Built | Caesar's Ghost | |
| Movie | 1981 | This Is Elvis | Self (archive footage) (uncredited) | |
| Movie | 1933 | Hollywood on Parade No. B-5 | Self (archive footage) (uncredited) | |
| Movie | 1937 | Sunday Night at the Trocadero | Groucho Marx | |
| Movie | 2019 | Mike Wallace Is Here | Self (archive footage) | |
| Movie | 1933 | Wonderland of California | Self | |
| Movie | 2022 | Groucho & Cavett | Self (archive footage) | |
| Movie | 1961 | Merrily We Roll Along: The Early Days of the Automobile | Self | |
| Movie | 1936 | Yours for the Asking | Sunbather (uncredited) | |
| Movie | 2016 | The Marx Brothers: Hollywood's Kings of Chaos | Self (archive footage) | |
| Movie | 2003 | Inside the Marx Brothers | Self (archive footage) | |
| Movie | 1993 | The Unknown Marx Brothers | Self (archive footage) | |
| Movie | 1939 | From the Ends of the Earth | Self | |
| Movie | 1976 | Joys | Self | |
| Movie | 1975 | Brother, Can You Spare a Dime? | Self (archive footage) | |
| Movie | 1940 | Hollywood: Style Center of the World | Self | |
| Movie | 1976 | That's Entertainment, Part II | (archive footage) | |
| Movie | 1940 | A New Romance of Celluloid: The Miracle of Sound | Self | |
| Movie | 1966 | Birds Do It | Man Looking Through Window At Melvin Flying | |
| Movie | 2018 | Game Changers | Self (archive footage) | |
| Movie | 1970 | The Mad, Mad, Mad Comedians | Self (voice) | |
| Movie | 1921 | Humor Risk | Villain | |
| Movie | 1976 | Salsa | Self (archive footage) | |
| Movie | 1964 | The Big Parade of Comedy | One of The Marx Brothers (archive footage) (uncredited) | |
| Movie | 2014 | And the Oscar Goes To... | Self (archive footage) | |
| Movie | 1991 | The One, the Only... Groucho | Self (archive footage) | |
| Movie | 1959 | The Incredible Jewel Robbery | Suspect in lineup | |
| Movie | 1976 | Hooray for Hollywood | Self (archive footage) | |
| Movie | 2021 | The Capote Tapes | Self (archive footage) | |
| Movie | 1988 | Hollywood Scandals and Tragedies | | |
| Movie | 1960 | The Mikado | Ko-Ko | |
| TV Show | 1950 | The Colgate Comedy Hour | Self | 1 |
| TV Show | 1965 | I Dream of Jeannie | Groucho Marx | 1 |
| TV Show | 1959 | The David Susskind Show | Self | 1 |
| TV Show | 1950 | You Bet Your Life | Self - Host | 427 |
| TV Show | 1953 | General Electric Theater | Suspect in a Police Lineup (uncredited) | 1 |
| TV Show | 1956 | The Dinah Shore Chevy Show | Self | 1 |
| TV Show | 1956 | The Steve Allen Show | Self - Guest | 1 |
| TV Show | 1950 | The Jack Benny Program | Groucho Marx | 1 |
| TV Show | 1962 | The Tonight Show Starring Johnny Carson | Self | 3 |
| TV Show | 1953 | General Electric Theater | John Graham | 1 |
| TV Show | 1957 | Tonight Starring Jack Paar | Self | 1 |
| TV Show | 1962 | The Tonight Show Starring Johnny Carson | Self - Guest Host | 1 |
| TV Show | 1950 | What's My Line? | Self - Mystery Guest | 2 |
| TV Show | 1956 | Tony Awards | Self - Presenter | 1 |
| TV Show | 1968 | The Dick Cavett Show | Self - Guest | 7 |
| TV Show | 1957 | America After Dark | Self | 1 |
| TV Show | 1959 | The Bell Telephone Hour | Ko-Ko | 1 |
| TV Show | 1961 | The Mike Douglas Show | Self | 1 |
| TV Show | 1950 | What's My Line? | Self - Panelist | 1 |
| TV Show | 1958 | Kraft Music Hall | Self | 2 |
| TV Show | 1972 | Midi trente | Self | 1 |
| TV Show | 1967 | Omnibus | Self | 1 |
