Chris Cronyn
Linda Cronyn
Franz Calder
Admiral Bill Carey
Arjenian
President
Secretary of Defense Sparks
Stewart Cronyn
Roger Cronyn
Russian Commissar (uncredited)
Seedy Man Listening to Radio (uncredited)
Steel Worker (uncredited)
Russian Official (uncredited)
Official (uncredited)
President's Aide (uncredited)
Secretary of the Navy (uncredited)
Worshipper (uncredited)
Senator from Wheat Belt (uncredited)
Peter Lewis (uncredited)
Coal Mine Owner (uncredited)
Senator (uncredited)
Worried Man at Lincoln Memorial (uncredited)
Military Man (uncredited)
Radio Listener (uncredited)
Maj. Gen. George Burdette (uncredited)
News Commentator #1 (uncredited)
Mine Owner (uncredited)
Military Guard (uncredited)
Seedy Woman Listening to Radio (uncredited)
Radio Commentator (uncredited)
Pitchman (uncredited)
Dr. Mitchell - Astronomer (uncredited)
Vendor (uncredited)
Foreign Radio Broadcaster (uncredited)
Dr. Boulting - Mitchell's Assistant (uncredited)
United Mine Workers Chief (uncredited)
Officer (uncredited)
Planetarium Guard (uncredited)
Russian Gen. Borodin (uncredited)