ตัวอย่าง
นักแสดง
Rachel Ames
Julie Cummings
Stephen Chase
Dr. George Frye
Estelle Etterre
Traveler (uncredited)
Barbara Rush
Joyce Hendron
Hayden Rorke
Dr. Emery Bronson
James Congdon
Eddie Garson (uncredited)
Mary Murphy
Student
Larry Keating
Dr. Cole Hendron
Sandro Giglio
Dr. Ottinger
Paul Frees
Narrator/U.S. President (voice)
Gertrude Astor
Traveler (uncredited)
Richard Derr
David Randall
Peter Hansen
Dr. Tony Drake
John Hoyt
Sydney Stanton
Frank Cady
Harold Ferris
Kirk Alyn
Rioter Bringing Guns (uncredited)