The King of Comedy

Robert De Niro

Rupert Pupkin

Jerry Lewis

Jerry Langford

Sandra Bernhard

Masha

Diahnne Abbott

Rita Keane

Shelley Hack

Cathy Long

Frederick de Cordova

Bert Thomas

Kim Chan

Jonno

Ed Herlihy

Himself

Lou Brown

Band Leader

Margo Winkler

Receptionist

Ralph Monaco

Raymond Wirtz

Catherine Scorsese

Rupert's Mom (voice)

Cathy Scorsese

Dolores

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

Chuck Low

Man in Chinese Restaurant

Katherine Wallach

Autograph Seeker

Charles Kaleina

Autograph Seeker

Richard Baratz

Caricaturist

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

Tony Boschetti

Mr. Gangemi

Tony Randall

Himself

Jay Julien

Langford's Lawyer

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

Thelma Lee

Woman in Telephone Booth

Joyce Brothers

Herself

Bill Minkin

McCabe

George Kapp

Mystery Guest

Victor Borge

Himself

Rob-Jamere Wess

Security Guard

Audrey Dummett

Cook

June Prud'Homme

Audrey

Edgar J. Scherick

Wilson Crockett

Thomas M. Tolan

Gerrity

Ray Dittrich

Giardello

Richard Dioguardi

Captain Burke

Harry J. Ufland

Langford's Agent

Scotty Bloch

Crockett's Secretary

Jim Lyness

Ticket Taker

Diane Rachell

McCabe's Wife

Dennis Mulligan

Plainclothesman

Tony Devon

Plainclothesman

Peter Fain

Plainclothesman

Michael F. Stodden

Plainclothesman

Gerard Murphy

Plainclothesman

Jimmy Raitt

Stage Manager

Martin Scorsese

TV Director

Charles Scorsese

First Man at Bar

Mardik Martin

Second Man at Bar

William Jorgensen

Newsman (voice)

Marvin Scott

Newsman (voice)

Chuck Stevens

Newsman (voice)

William Littauer

Newsman (voice)

Jeff David

Announcer (voice)

Mick Jones

Street Scum

Liza Minnelli

Liza Minnelli