"Lionel Twain invites the world's five greatest detectives to a 'dinner and murder'. Included are a blind butler, a deaf-mute maid, screams, spinning rooms, secret passages, false identities and more plot turns and twists than are decently allowed."
Truman Capote
as Lionel Twain
Alec Guinness
as Butler Jamesir Bensonmum
Peter Sellers
as Sidney Wang
David Niven
as Dick Charleston
Maggie Smith
as Dora Charleston
James Coco
as Milo Perrier
Peter Falk
as Sam Diamond
Eileen Brennan
as Tess Skeffington
Elsa Lanchester
as Jessica Marbles
Estelle Winwood
as Nurse Withers
Nancy Walker
as Kitchen Maid Yetta
James Cromwell
as Marcel Cassette
Richard Narita
as Willie Wang
Fay Wray
as Door Bell (archive sound) (uncredited)
Robert Moore
Director
Ray Stark
Producer
Dave Grusin
Original Music Composer
David M. Walsh
Director of Photography
John F. Burnett
Editor
Jennifer Shull
Casting
Neil Simon
Writer
Marvin March
Set Decoration
Ann Roth
Costume Design
Joe DiBella
Makeup Artist
Vivienne Walker
Hairstylist
Fred T. Gallo
Assistant Director
Ron Frazier
Carpenter
Jerry Jost
Sound mixer
Joseph Kite
Boom Operator
Tex Rudloff
Sound Re-Recording Mixer
Frank E. Warner
Sound Effects Editor
Augie Lohman
Special Effects
Robert Edesa
First Assistant Camera
Maurice Marks
Stunts
Norman Harris
Gaffer
Roger Shearman Jr.
Camera Operator
Mel Traxel
Still Photographer
Margaret Booth
Supervising Film Editor
Michael A. Stevenson
Assistant Editor
Charles Addams
Title Graphics
Wayne Fitzgerald
Title Designer
Stephen B. Grimes
Production Design
Roger M. Rothstein
Associate Producer
David Sosna
Second Assistant Director
George Probert
Music Editor
John Brice
Editorial Staff
Harry Kemm
Art Direction
Charles H. Schram
Makeup Supervisor
Tony Faso
Costumer
Agnes G. Henry
Shari Leibowitz
Assistant Production Manager
George Rondo
Dialogue Coach
Richard Moran
Key Grip
Vince Martinez
Finance
Mary Malin
Assistant Costume Designer
Carol Shapiro
Unit Publicist
Frank Bueno
Producer's Assistant
Julia Tucker
Continuity
Terry E. Lewis
Property Master