Christopher Walken

Michael Brace

Cliff Robertson

Alex Terson

Donald Hotton

Landan Marks

John Hugh

Animal Lab Technician

Louise Fletcher

Lillian Reynolds

Jordan Christopher

Gordy Forbes

Natalie Wood

Karen Brace

Alan Fudge

Robert Jenkins

Lou Walker

Chef

Ira David Wood III

Barry (as David Wood)

Joe Dorsey

Hal Abramson

Bill Morey

James Zimbach

Jason Lively

Chris Brace

Darrell Larson

Security Technician

Stacey Kuhne-Adams

Andrea

Keith Colbert

Dr. Ted Harris

Jerry Bennett

Dr. Janet Bock

Mary Fran Lyman

Realtor (as Mary-Fran Lyman)

Jack Harmon

Security Guard

Nina Axelrod

Simulator Technician

Lana Clarkson

Food Fantasy Girl (uncredited)

George Sasaki

Scientist (uncredited)

Douglas Trumbull

Director

Joel L. Freedman

Executive Producer