"Arthur is a 30-year-old child who will inherit $750 million if he complies with his family's demands and marries the woman of their choosing."
Dudley Moore
as Arthur Bach
Liza Minnelli
as Linda Marolla
John Gielgud
as Hobson
Geraldine Fitzgerald
as Martha Bach
Jill Eikenberry
as Susan Johnson
Stephen Elliott
as Burt Johnson
Ted Ross
as Bitterman
Barney Martin
as Ralph Marolla
Thomas Barbour
as Stanford Bach
Anne DeSalvo
as Gloria
Marjorie Barnes
as Hooker
Dillon Evans
as Plaza Maitre D'
Maurice Copeland
as Uncle Peter
Justine Johnston
as Aunt Pearl
Paul Vincent
as Plaza Waiter
Mary Alan Hokanson
as Secretary
Paul Gleason
as Executive
Phyllis Somerville
as Saleslady
Irving Metzman
as Security Guard
Joe Doolan
as Kid in Street
John Doolan
Melissa Ballan
Florence Tarlow
as Mrs. Nesbitt
Lou Jacobi
as Plant Store Owner
Gordon Press
as Prize Man
Bob Maroff
Marcella Lowery
as Harriet
Jerome Collamore
as Johnson Butler
Mark Fleischman
as Waiter
Helen Hanft
as Perry's Wife
John Eric Bentley
as Perry
Raymond Serra
as Racetrack Owner
Peter Evans
as Preston
Dominic Guastaferro
as Party Guest
Phil Oxnam
as Orderly
Richard Hamilton
as Bill
George Riddle
as Bartender
Lawrence Tierney
as Man in Coffee Shop
Bobo Lewis
as Lady in Coffee Shop
B. Constance Barry
as Wedding Guest
Kurt Schlesinger
Steve James
as Man Outside Tie Store (uncredited)
Debra Lass
as Bridesmaid (uncredited)
Mark Margolis
as Wedding Guest (uncredited)
Marianne Muellerleile
as Partygoer (uncredited)
Judi Passeltiner
Steve Gordon
Director
Christopher Cross
Theme Song Performance
Edward Swanson
Construction Coordinator
Sanford Rackow
Supervising Sound Editor
Edgard Mourino
Stunts
Robert Greenhut
First Assistant Director
Ricki-Ellen Brooke
Second Assistant Camera
Norman Buck
Key Grip
Thomas A. Reilly
Second Assistant Director
James Mazzola
Property Master
Richard Vorisek
Sound Re-Recording Mixer
Sandy Brooke
Assistant Camera
Romaine Greene
Hairstylist
Louis Sabat
Sound Recordist
Ellen Levene
Unit Publicist
Paul Eads
Assistant Art Director
Helen Robin
Production Coordinator
Marjorie Deutsch
Sound Editor
James Sabat
Sound Mixer
W. Steven Graham
Louis Bertini
Assistant Sound Editor
Vito L. Ilardi
Boom Operator
Fern Buchner
Makeup Artist
Dan Pinsky
Music Editor
Howard Feuer
Casting
Stephen Hendrickson
Production Design
Steven J. Jordan
Set Decoration
Producer
Michael Peyser
Production Manager
Kay Chapin
Script Supervisor
William Ward
Gaffer
Brian Hamill
Still Photographer
Carol Joffe
Juliet Taylor
Dick Mingalone
Camera Operator
Charles H. Joffe
Executive Producer
Jeremy Ritzer
Burt Bacharach
Original Music Composer
Susan E. Morse
Editor
Jane Greenwood
Costume Design
Fred Schuler
Director of Photography
Larry Brezner
Writer
Jack Rollins
Peter Allen
Music
Main Title Theme Composer
Carole Bayer Sager
Pamela Scott Arnold
Assistant Editor
Richard Hazard
Orchestrator
Helen Tarr
Wardrobe Supervisor
Jim Boyer
Music Sound Design and Processing
Jonathan Oppenheim
Walter Charleston
Transportation Captain
Artie Kaplan
Music Consultant
David Charles
Assistant Costume Designer
James Sorice
Scenic Artist
Meri Weingarten
Patricia Eiben
Michael Omartian
Music Producer
Joseph Badalucco Jr.
Lead Set Dresser
Arne Olsen
Construction Grip
Melissa A. Higgins
Apprentice Sound Editor
William A. Campbell
Ezra Swerdlow
Assistant Unit Manager
David L. Quaid
Additional Photography
Wendi Lazar-Pillot
Location Manager
Cosmo Sorice