Synopsis
Aspiring comic Rupert Pupkin attempts to achieve success in show business by stalking his idol, a late night talk-show host who craves his own privacy.
Cast

Robert De Niro
Rupert Pupkin

Jerry Lewis
Jerry Langford

Diahnne Abbott
Rita

Sandra Bernhard
Masha

Shelley Hack
Cathy Long

Frederick de Cordova
Bert Thomas

Ed Herlihy
Ed Herlihy
Lou Brown
Band Leader
Loretta Tupper
Stage Door Fan
Peter Potulski
Stage Door Fan
Vinnie Gonzales
Stage Door Fan
Whitey Ryan
Stage Door Guard
Doc Lawless
Chauffeur

Marta Heflin
Young Girl
Katherine Wallach
Autograph Seeker
Charles Kaleina
Autograph Seeker
Richard Baratz
Caricaturist

Catherine Scorsese
Rupert's Mom (voice)

Cathy Scorsese
Dolores

Chuck Low
Man in Chinese Restaurant

Liza Minnelli
Liza Minnelli
Leslie Levinson
Roberta Posner
Alan Potashnick
Man at Telephone
Michael Kolba
Man at Telephone
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