Two federal agents do not believe an atomic-bomb threat is just another war game.
John Ireland
Investigator John Williams
Richard Denning
Chief Investigator Paul Reagan
Suzanne Dalbert
Margo Wayne
Robert Foulk
Commander Jackson
Mike Connors
Lt. Magrew (as Touch Conners)
Richard Avonde
Buzz Olin
William Bryant
FBI Agent in Montage (as William R. Klein)
Cicely Browne
Blonde Woman
Tommy Farrell
Agent Reynolds
Joseph Mell
Box of Taffy Man at Penn Station
Robert Hunter
Andy, alias Andre, an agent
Peter Marshall
Leo Wayne
