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