Cast

Michael Sarrazin

Peter Proud

Jennifer O'Neill

Ann Curtis

Margot Kidder

Marcia Curtis

Cornelia Sharpe

Nora Hayes

Paul Hecht

Dr. Samuel Goodman

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Tony Stephano

Jeff Curtis

Norman Burton

Dr. Frederick Spear

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Anne Ives

Ellen Curtis

Debralee Scott

Suzy

Steve Franken

Dr. Charles Crennis

Crew

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Charles A. Pratt

Executive Producer (Production)

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Frank P. Rosenberg

Producer (Production)

Jerry Goldsmith

Original Music Composer (Sound)

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Jack Martin Smith

Production Design (Art)

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Robert De Vestel

Set Decoration (Art)

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Barbara Krieger

Set Decoration (Art)

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Jack H. Young

Makeup Artist (Costume & Make-Up)

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Hal Blair

Production Manager (Production)

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David 'Buck' Hall

Second Unit (Crew)

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Jack Brown

Camera Intern (Camera)