Truman Capote

Lionel Twain

Alec Guinness

Butler Jamesir Bensonmum

Peter Sellers

Sidney Wang

David Niven

Dick Charleston

Maggie Smith

Dora Charleston

James Coco

Milo Perrier

Peter Falk

Sam Diamond

Eileen Brennan

Tess Skeffington

Elsa Lanchester

Jessica Marbles

Estelle Winwood

Nurse Withers

Nancy Walker

Kitchen Maid Yetta

James Cromwell

Marcel Cassette

Richard Narita

Willie Wang

Fay Wray

Door Bell (archive sound) (uncredited)

Dave Grusin

Original Music Composer

Ray Stark

Producer

Robert Moore

Director

David M. Walsh

Director of Photography

Jennifer Shull

Casting

John F. Burnett

Editor

Neil Simon

Writer

Vivienne Walker

Hairstylist

Joseph Kite

Boom Operator

Robert Edesa

First Assistant Camera

Marvin March

Set Decoration

Ann Roth

Costume Design

Joe DiBella

Makeup Artist

Charles Addams

Title Graphics

Fred T. Gallo

Assistant Director

Frank E. Warner

Sound Effects Editor

Margaret Booth

Supervising Film Editor

Tex Rudloff

Sound Re-Recording Mixer

Augie Lohman

Special Effects

Maurice Marks

Stunts

Roger Shearman Jr.

Camera Operator

Norman Harris

Gaffer

Ron Frazier

Carpenter

Jerry Jost

Sound mixer

Mel Traxel

Still Photographer

Michael A. Stevenson

Assistant Editor

Wayne Fitzgerald

Title Designer

Stephen B. Grimes

Production Design

Roger M. Rothstein

Associate Producer

Harry Kemm

Art Direction

John Brice

Editorial Staff

George Probert

Music Editor

Tony Faso

Costumer

David Sosna

Second Assistant Director

Charles H. Schram

Makeup Supervisor

Agnes G. Henry

Costumer

Mary Malin

Assistant Costume Designer

Shari Leibowitz

Assistant Production Manager

Vince Martinez

Finance

Carol Shapiro

Unit Publicist

George Rondo

Dialogue Coach

Richard Moran

Key Grip

Frank Bueno

Producer's Assistant

Terry E. Lewis

Property Master

Julia Tucker

Continuity