"A young man finds out that his parents had been used in an atomic-weapons experiment shortly before he was born, and that the results have had some unexpected effects on him."
Brad Dourif
as Sam
Cynthia Bain
as Lisa Wilcox
Jon Cypher
as Dr. Marsh
William Prince
as Lew Orlander
Melinda Dillon
as Nina
Dey Young
as Rachel
Tegan West
as Springer
Michael Keys Hall
as Dr. Cagney
Dale Dye
as General
Dick Butkus
as Lt. General
Joe Mays
as Dr. Persons
Stacy Edwards
as Peggy Bell
Brian Bremer
as Brian Bell
Frank Whiteman
as Young Orlander
Judy Prescott
as Student Director
Judy Behr
as School Nurse
Betsy Thomas
as Nurse at Hospital
André de Toth
as Vandenmeer (uncredited)
John Landis
as Radio Technician
Jaime Alba
as Walter
Mark Roberts
as Dr. Simpson
Dick Warlock
as Mr. Fitzpatrick
Judith Jones
as Jennifer
William Forward
as Scientist
Ron Blair
as Maitre 'D
Mimi Wearn
as Vicky
Sandy Ignon
as Doctor in 50's
Nick Gambella
as Student in Theater
Patricia Gallagher Layton
as Maid
Barbara Leary
as Amy Whitaker
Paul Barresi
as Hospital Guard
George Buck Flower
as Preacher on Radio (voice)
Tobe Hooper
as Cigar Smoking Diner Patron
Patrick Brock
as Paramedic (uncredited)
John Garrett
Swing
Howard Goldberg
Screenplay
Director
David Kern
Editor
Story
Carol Lewis
Casting
Glory Fioramonti
Stunts
Paula Moody
Pat Romano
Eric H. Lasher
Still Photographer
William Tony Hooper
Mechanical Designer
Makeup Effects
Gene Abel
Production Design
Levie Isaacks
Director of Photography
Graeme Revell
Music
Kerry Mendenhall
Hair Department Head
Arthur M. Sarkissian
Executive Producer
Debbie Lynn Ross