Robert De Niro
as Rupert Pupkin

Jerry Lewis
as Jerry Langford

Sandra Bernhard
as Masha

Diahnne Abbott
as Rita Keane

Shelley Hack
as Cathy Long

Frederick de Cordova
as Bert Thomas

Kim Chan
as Jonno

Ed Herlihy
as Himself

Lou Brown
as Band Leader

Margo Winkler
as Receptionist

Ralph Monaco
as Raymond Wirtz

Catherine Scorsese
as Rupert's Mom (voice)

Cathy Scorsese
as Dolores

Loretta Tupper
as Stage Door Fan

Peter Potulski
as Stage Door Fan

Vinnie Gonzales
as Stage Door Fan

Whitey Ryan
as Stage Door Guard

Doc Lawless
as Chauffeur

Marta Heflin
as Young Girl

Chuck Low
as Man in Chinese Restaurant

Katherine Wallach
as Autograph Seeker

Charles Kaleina
as Autograph Seeker

Richard Baratz
as Caricaturist

Leslie Levinson
as Roberta Posner

Alan Potashnick
as Man at Telephone

Michael Kolba
as Man at Telephone

Robert Colston
as Man at Telephone

Ramon Rodriguez
as Man at Telephone

Chuck Coop
as Man at Telephone

Sel Vitella
as Man at Telephone

Tony Boschetti
as Mr. Gangemi

Tony Randall
as Himself

Jay Julien
as Langford's Lawyer

Joe Strummer
as Street Scum

Paul Simonon
as Street Scum

Kosmo Vinyl
as Street Scum

Ellen Foley
as Street Scum

Pearl Harbour
as Street Scum

Gaby Salter
as Street Scum

Jerry Baxter-Worman
as Street Scum

Don Letts
as Street Scum

Matt Russo
as Cabbie

Thelma Lee
as Woman in Telephone Booth

Joyce Brothers
as Herself

Bill Minkin
as McCabe

George Kapp
as Mystery Guest

Victor Borge
as Himself

Rob-Jamere Wess
as Security Guard

Audrey Dummett
as Cook

June Prud'Homme
as Audrey

Edgar J. Scherick
as Wilson Crockett

Thomas M. Tolan
as Gerrity

Ray Dittrich
as Giardello

Richard Dioguardi
as Captain Burke

Harry J. Ufland
as Langford's Agent

Scotty Bloch
as Crockett's Secretary

Jim Lyness
as Ticket Taker

Diane Rachell
as McCabe's Wife

Dennis Mulligan
as Plainclothesman

Tony Devon
as Plainclothesman

Peter Fain
as Plainclothesman

Michael F. Stodden
as Plainclothesman

Gerard Murphy
as Plainclothesman

Jimmy Raitt
as Stage Manager

Martin Scorsese
as TV Director

Charles Scorsese
as First Man at Bar

Mardik Martin
as Second Man at Bar

William Jorgensen
as Newsman (voice)

Marvin Scott
as Newsman (voice)

Chuck Stevens
as Newsman (voice)

William Littauer
as Newsman (voice)

Jeff David
as Announcer (voice)

Mick Jones
as Street Scum

Liza Minnelli
as Liza Minnelli