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

Robert Colston

Man at Telephone

Ramon Rodriguez

Man at Telephone

Chuck Coop

Man at Telephone

Sel Vitella

Man at Telephone

Margo Winkler

Receptionist

Tony Boschetti

Mr. Gangemi

Mick Jones

Street Scum

Joe Strummer

Street Scum

Paul Simonon

Street Scum

Kosmo Vinyl

Street Scum

Ellen Foley

Street Scum

Pearl Harbour

Street Scum

Gaby Salter

Street Scum

Jerry Baxter-Worman

Street Scum

Don Letts

Street Scum

Matt Russo

Cabbie

Joyce Brothers

Dr. Joyce Brothers

Victor Borge

Victor Borge

Ralph Monaco

Raymond Wirtz

Kim Chan

Jonno

Edgar J. Scherick

Wilson Crockett

Richard Dioguardi

Captain Burke

Jay Julien

Langford's Lawyer

Harry J. Ufland

Langford's Agent

Scotty Bloch

Crockett's Secretary

Tony Devon

Plainclothesman

Peter Fain

Plainclothesman

Gerard Murphy

Plainclothesman

Martin Scorsese

TV Director

Tony Randall

Tony Randall

Charles Scorsese

First Man at Bar

Mardik Martin

Second Man at Bar

Mary Elizabeth Mastrantonio

Crowd Extra (uncredited)