Biography
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.
Filmography
Cast Credits

The Marx Brothers: Hollywood's Kings of Chaos
Character: Self (archive footage)
MOVIE • 2016

Inside the Marx Brothers
Character: Self (archive footage)
MOVIE • 2003

The Unknown Marx Brothers
Character: Self (archive footage)
MOVIE • 1993

Classic Comedy Teams
Character: Self (archive footage)
MOVIE • 1986

Hollywood Out-takes and Rare Footage
Character: Self (archive footage) (uncredited)
MOVIE • 1983

The Marx Brothers in a Nutshell
Character: (archive footage)
MOVIE • 1982

Oops, Those Hollywood Bloopers!
Character: Self (archive footage)
MOVIE • 1982

That's Entertainment, Part II
Character: (archive footage)
MOVIE • 1976

Brother, Can You Spare a Dime?
Character: Self (archive footage)
MOVIE • 1975

Hollywood: The Dream Factory
Character: Self (archive footage)
MOVIE • 1972

The Big Parade of Comedy
Character: One of The Marx Brothers (archive footage) (uncredited)
MOVIE • 1964

The Incredible Jewel Robbery
Character: Harry
MOVIE • 1959

No Time at All
Character: Mr. Kramer
MOVIE • 1958

The Story of Mankind
Character: Monk
MOVIE • 1957
America After Dark
Character: Self
TV • 1957

Playhouse 90
Character: Mr. Kramer
TV • 1956

Showdown at Ulcer Gulch
Character: Piano player
MOVIE • 1956

General Electric Theater
Character: Harry
TV • 1953

The Colgate Comedy Hour
Character: Self
TV • 1950

What's My Line?
Character: Self
TV • 1950