Peter Graves
Dr. Ed Wainwright
Peter Graves
Dr. Ed Wainwright
Peggie Castle
Audrey Aimes
Morris Ankrum
Gen. John Hanson
Than Wyenn
Frank Johnson
Thomas Browne Henry
Col. Tom Sturgeon
Richard Benedict
Cpl. Mathias
James Seay
Capt. James Barton
John Close
Maj. Everett
Don C. Harvey
State Police Car 254 Officer
Larry J. Blake
Roadblock Sergeant
Eilene Janssen
William's Date
Hyllton Socher
Frank, grainary platoon soldier
Frank Wilcox
Gen. Short
Douglas Evans
Editor Norman Taggart
Paul Grant
William Summerfield, teen boy
Richard Emory
Lieutenant
Hank Patterson
Dave
Steve Warren
Observation Post #3 Soldier
Frank Connor
Observation Post #1 Soldier
Don Eitner
Observation Post #2 Soldier
Rayford Barnes
Chuck, granary platoon soldier
Kirk Alyn
Bomber Pilot
Bill Baldwin
TV Announcer (uncredited)
Frank Chase
Helicopter Pilot (uncredited)
Joe Cranston
Soldier (uncredited)
Patricia Dean
Red Cross Representative
James Douglas
Army Sentry (uncredited)
Paul Frees
Helicopter Pilot (voice)
Lyle Latell
Police Lt. MacKenzie (uncredited)
Dennis Moore
Police Dispatcher KLP646
Zon Murray
Roadblock Sentry Confiscating Camera
Alan Reynolds
Agricultural Agent
Ralph Sanford
Man with Red Cross Representative [extra]
Bert Stevens
Col. Hill [bit]
Alan Wells
Headquarters Sergeant
Bert I. Gordon
Director
Flora M. Gordon
Special Effects Assistant
Lester Gorn
Screenplay
Bert I. Gordon
Special Effects
Walter E. Keller
Art Direction
Bert I. Gordon
Producer
Fred Freiberger
Screenplay
Jack A. Marta
Director of Photography
Steve Drumm
Makeup Artist
Albert Glasser
Original Music Composer
Aaron Stell
Editor
Wilson Shyer
Second Assistant Director
Austin Herrick
Electrician
Morris J. McNaughton
Music Editor
Douglas Stewart
Sound Effects
Richard E. Tyler
Sound Mixer
George Milo
Set Decoration
George J. Eppich
Sound Effects
Melville Shyer
Assistant Director
Albert Glasser
Music Director
Nels Mathias
Key Grip
James Harris
Property Master