Calificación
Reparto

William Lundigan
Dr. Richard Donald Stanton

Herbert Marshall
Dr. Donald L. Stanton / Narrator

Richard Carlson
Dr. Jerry Lockwood

Martha Hyer
Dr. Jane Flynn

Dawn Addams
Susan Manners

Robert Karnes
Walter Gordon

Lawrence Dobkin
Dr. Delmar

George Eldredge
Dr. Paul Dryden

Dan Riss
Dr. Frank Werner

Michael Fox
Dr. Klinger

King Donovan
James O'Herli

Kem Dibbs
David Wells

James Best
Dr. Sidney K. Fuller