Glenn Ford

President Richardson

Robert Vaughn

Senator Barkley

Masao Kusakari

Doctor Shûzô Yoshizumi

Yumi Takigawa

Asami Noriko

Henry Silva

General Garland

Bo Svenson

Major Carter

Stuart Gillard

Doctor Ed Meyer

Cec Linder

Doctor Latour

Chuck Connors

Captain McCloud - HMS Nereid

George Kennedy

Admiral Conway