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