Self (archive footage)
Groucho & Cavett (2022)
Self (archive footage) (uncredited)
The Sparks Brothers (2021)
Mike Wallace Is Here (2019)
Game Changers (2018)
The Marx Brothers: Hollywood's Kings of Chaos (2016)
Self
The Last Laugh (2016)
And the Oscar Goes To... (2014)
Inside the Marx Brothers (2003)
Beatles: Big Beat Box (2001)
The Our Gang Story (1994)
The Unknown Marx Brothers (1993)
The One, the Only... Groucho (1991)
Self (from Love Happy [1949]) (archive footage)
Marilyn Monroe: Beyond the Legend (1986)
(archive footage)
Going Hollywood: The '30s (1984)
Hollywood Out-takes and Rare Footage (1983)
The Marx Brothers in a Nutshell (1982)
Oops, Those Hollywood Bloopers! (1982)
This Is Elvis (1981)
Salsa (1976)
That's Entertainment, Part II (1976)
Joys (1976)
Brother, Can You Spare a Dime? (1975)
Hollywood: The Dream Factory (1972)
Self (voice)
The Mad, Mad, Mad Comedians (1970)
God
Skidoo (1968)
The Movie Orgy (1968)
Man Looking Through Window At Melvin Flying
Birds Do It (1966)
One of The Marx Brothers (archive footage) (uncredited)
The Big Parade of Comedy (1964)
Merrily We Roll Along: The Early Days of the Automobile (1961)
Peter Minuit
The Story of Mankind (1957)
George Schmidlap (uncredited)
Will Success Spoil Rock Hunter? (1957)
Stage conductor
Showdown at Ulcer Gulch (1956)
Benjamin Franklin 'Benny' Linn
A Girl in Every Port (1952)
Emile J. Keck
Double Dynamite (1951)
Groucho Marx
Mr. Music (1950)
Sam Grunion
Love Happy (1949)
Lionel Q. Deveraux
Copacabana (1947)
Ronald Kornblow
A Night in Casablanca (1946)
Wolf J. Flywheel
The Big Store (1941)
S. Quentin Quale
Go West (1940)
A New Romance of Celluloid: The Miracle of Sound (1940)
Hollywood: Style Center of the World (1940)
Attorney J. Cheever Loophole
At the Circus (1939)
From the Ends of the Earth (1939)
Gordon Miller
Room Service (1938)
Sunday Night at the Trocadero (1937)
Dr. Hugo Z. Hackenbush
Kobylkáři (1937)
Sunbather
Yours for the Asking (1936)
Otis B. Driftwood
A Night at the Opera (1935)
Hollywood on Parade No. B-5 (1933)
Rufus T. Firefly
Kachní polévka (1933)
Groucho Marx's Home Movies (1933)
Wonderland of California (1933)
Professor Wagstaff
Horse Feathers (1932)
Caesar's Ghost
I'll Say She Is (1931)
Groucho
Monkey Business (1931)
The House That Shadows Built (1931)
Captain Jeffrey T. Spaulding
Animal Crackers (1930)
Hammer
The Cocoanuts (1929)
Villain
Humor Risk (1921)
Writer
29/73 Ready-Made (1973)
Story
The Life of Riley (1949)
The King and the Chorus Girl (1937)
Director