Margot Kidder

Danielle Breton / Dominique Blanchion

Jennifer Salt

Grace Collier

Charles Durning

Joseph Larch

William Finley

Emil Breton

Lisle Wilson

Phillip Woode

Barnard Hughes

Arthur McLennen

Mary Davenport

Mrs. Collier

Dolph Sweet

Detective Kelly

Olympia Dukakis

Louise Wilanski

Catherine Gaffigan

Arlene

Bobby Collins

Cathy Berry

Lobster child (uncredited)

Art Evans

African Room Waiter (uncredited)

Justine Johnston

Elaine D'Anna (uncredited)

James Mapes

Guard (uncredited)

Laun Maurer

Druggist (uncredited)

Bob Melvin

Extra (uncredited)

Burt Richards

Hospital Attendant (uncredited)

Brian De Palma

Screenplay

Brian De Palma

Director

Paul Hirsch

Editor

Edward R. Pressman

Producer

Bernard Herrmann

Original Music Composer

Gregory Sandor

Director of Photography

Louisa Rose

Screenplay

Robert Rohdie

Associate Producer

Sylvia Fay

Casting

Lynn Pressman-Raymond

Associate Producer

Brian De Palma

Original Story

Dick Vorisek

Sound Mixer

Susan Braddon

Assistant Editor

Alan Hopkins

Assistant Director

Russell Arthur

Sound Recordist

John Fox

Sound Editor

Gary Weist

Production Design

Jeanne Richmond

Key Makeup Artist