William Simon aka Billy Bright

Dick Van Dyke

Mary Gibson

Michele Lee

Martin 'Cockeye' Van Buren

Mickey Rooney

Frank Powers

Cornel Wilde

Sybil Atlas

Nina Wayne

Mama Bell

Pert Kelton

Steve Allen

Steve Allen

Ginger

Barbara Heller

Edwin C. Englehardt

Ed Peck

Lorraine Margaret Bell

Jeannine Riley

1st Director

Gavin MacLeod

Miguel

Jay Novello

Doctor

Craig Huebing

Phoebe

Paulene Myers

Armand

Fritz Feld

Lawrence

Jerome Cowan

Woman in Detergent Commercial (as Isabell Sanford)

Isabel Sanford

Nurse

Jeff Donnell

Al Schilling

Carl Reiner

Ketchup Man

Howard Dayton

Lord Faversham

Maurice Dallimore

Passerby at Billy's Funeral (unbilled)

Mantan Moreland

Old Lady (uncredited)

Lillian Adams

Mike Fields (uncredited)

Robert Ball

Minor Role (uncredited)

Rex Benson

Fatso / Dental Patient (uncredited)

Mel Berger

Minor Role (uncredited)

Jack Berle

Fred - Director (uncredited)

Frank Biro

Premiere Guest (uncredited)

Nick Borgani

Minor Role (uncredited)

William Boyce

Funeral Guest (uncredited)

Paul Bradley

Minister (uncredited)

Peter Brocco

Minor Role (uncredited)

Linda Burton

Self (archive footage) (uncredited)

Calvin Coolidge

Minor Role (uncredited)

Suzanne Covington

Lifeguard in Film (uncredited)

Billy Curtis

Minor Role (uncredited)

Luis Delgado

Screening Room Executive (uncredited)

Peter Eastman

French Maid (uncredited)

Joyce Easton

Late Night Movie Host (uncredited)

Geoff Edwards

Mailbox Gag (uncredited)

Lynn Fields

Cop (uncredited)

Harry Fleer

Newsreel Narrator / Commerical Announcer / Man in Restaurant (voice)

Paul Frees

Talk Show Guest (uncredited)

Leonard Frey

Minor Role (uncredited)

Sig Frohlich

Mexican Barfly (uncredited)

Ben Frommer

Minor Role (uncredited)

Dee Gardner

Restaurant Patron (uncredited)

Eddie Garrett

Minor Role (uncredited)

Bobby Gilbert

Burly Man (uncredited)

The Great John L.

Butler (uncredited)

Clive Halliday

Cameraman (uncredited)

Alvin Hammer

Still Photographer (uncredited)

Brick Huston

Storekeeper (uncredited)

Lou Kane

Amanda Lou Phipps (uncredited)

Suzie Kaye

Theatre Doorman (uncredited)

Kenner G. Kemp

Restaurant Patron (uncredited)

Joseph La Cava

Restaurant Patron (uncredited)

Ethelreda Leopold

Hearse Driver (uncredited)

Frank Mathias

Bathing Beauty (uncredited)

Kres Mersky

Pedestrian Gag Man in 'Love Honor and Oh Boy' (uncredited)

Howard Morris

Housekeeper (uncredited)

Ottola Nesmith

Funeral Guest (uncredited)

William H. O'Brien

Wedding Guest (uncredited)

Murray Pollack

Officer (uncredited)

Ward Ramsey

Musician (uncredited)

Christopher Ross

Minor Role (uncredited)

Mark Russell

Funeral Guest (uncredited)

Paul Russell

Pallbearer at Funeral (uncredited)

Cosmo Sardo

Pallbearer at Funeral (uncredited)

Jeffrey Sayre

Little Man (uncredited)

Johnny Silver

Hot Dog Man (uncredited)

Ralph Smiley

Billy's Mother in 'Forget Me Not' (uncredited)

Irene Tedrow

Jungle Jim (archive footage) (uncredited)

Johnny Weissmüller

Denise in Film Clip (archive footage) (uncredited)

Jean Willes

Organist (uncredited)

Dick Winslow

Prison Warden in Film (uncredited)

Bill Zuckert