Leonard "Chico" Marx (March 22, 1887 – October 11, 1961) was an American comedian and film star as part of the Marx Brothers. His persona in the act was that of a dim-witted con artist, seemingly of rural Italian origin, who wore shabby clothes, and sported a curly-haired wig and Tyrolean hat. Description above from the Wikipedia article Chico Marx, licensed under CC-BY-SA, full list of contributors on Wikipedia.
Hollywood on Parade No. B-10
(Self)
Duck Soup
(Chicolini)
The Cocoanuts
(Pastrami)
At the Circus
(Antonio Pirelli)
Go West
(Joe Panello)
A Day at the Races
(Tony)
A Night in Casablanca
(Corbaccio)
The Big Store
(Ravelli)
Love Happy
(Faustino the Great)
Horse Feathers
(Baravelli)
Animal Crackers
(Signor Emanuel Ravelli)
Monkey Business
(Chico)
The Story of Mankind
(Monk)
A Night at the Opera
(Fiorello)
Room Service
(Harry Binelli)
The Marx Brothers in a Nutshell
((archive footage))
I'll Say She Is
(Tomalio)
Hollywood: The Dream Factory
(Self (archive footage))
Oops, Those Hollywood Bloopers!
(Self (archive footage))
Hollywood Out-takes and Rare Footage
(Self (archive footage) (uncredited))
Showdown at Ulcer Gulch
(Piano player)
The House That Shadows Built
(Tomalio)
Hollywood on Parade No. B-5
(Self (archive footage) (uncredited))
No Time at All
(Mr. Kramer)
Wonderland of California
(Self)
The Marx Brothers: Hollywood's Kings of Chaos
(Self (archive footage))
The Unknown Marx Brothers
(Self (archive footage))
Inside the Marx Brothers
(Self (archive footage))
Hollywood - The Second Step
(Himself)
Hollywood: Style Center of the World
(Self)
Brother, Can You Spare a Dime?
(Self (archive footage))
That's Entertainment, Part II
((archive footage))
From the Ends of the Earth
(Self)
A New Romance of Celluloid: The Miracle of Sound
(Self)
Humor Risk
(Chuckling [Italian] Henchman)
The Big Parade of Comedy
(One of The Marx Brothers (archive footage) (uncredited))
The Incredible Jewel Robbery
(Harry)
Classic Comedy Teams
(Self (archive footage))
Bob Hope's World of Comedy
(Self - Tribute Montage (archive footage))
The Colgate Comedy Hour
(Self)
General Electric Theater
(Harry)
What's My Line?
(Self)
America After Dark
(Self)
Playhouse 90
(Mr. Kramer)