Ed Begley Jr.

Frank

E.J. André

Mr. McCauley

Ann Doran

Mrs. McCauley

Christina Hart

Helen

Orin Cannon

Old Farmer

Jean Le Bouvier

Mrs. Cantrell

Dick McGarvin

Mr. Dorset

Karen Hurley

Mr. Dorset

Patrick Macnee

Dr. Gheria

Anjanette Comer

Alexis

Elisha Cook Jr.

Karel

Horst Buchholz

Michael

Joan Hackett

Mother

Lee Montgomery

Bobby

Michael Talbott

Vinnie McCauley (uncredited)

Gail Bowman

Maria (uncredited)

John Dehner

Narrator (voice) (uncredited)

Joan Lemmo

Eva (uncredited)

Jeff Reese

Young Man (uncredited)

Lars Green

Demonic Bobby (uncredited)

Richard Matheson

Writer

Dan Curtis

Director

Dennis Virkler

Editor

Dan Curtis

Producer

Frank Westmore

Makeup Artist

Jack Finney

Original Story

Richard Matheson

Original Story

Trevor Williams

Art Direction

Dennis W. Peeples

Set Decoration

Robert Singer

Producer

Ric Waite

Director of Photography

Bob Cobert

Original Music Composer

Paul Lohmann

Additional Photography

Bill Owens

Production Manager

Fred Giles

First Assistant Director

Ken Sheppard

Location Manager

June Samson

Script Supervisor