| Person | Type | Job | Role(s) |
|---|---|---|---|
 Ernie F. Orsatti | Crew | Crew | Stunts |
 Fred J. Koenekamp | Crew | Camera | Director of Photography |
 Harold F. Kress | Crew | Editing | Editor |
Howard Jensen | Crew | Crew | Special Effects |
 Irwin Allen | Crew | Directing | Director, Producer |
Jack Baur | Crew | Production | Casting |
 Jerry Goldsmith | Crew | Sound | Original Music Composer |
L.B. Abbott | Crew | Visual Effects | Visual Effects |
Larry Holt | Crew | Crew | Stunts |
 Loren Janes | Crew | Crew | Stunts |
Norman A. Cook | Crew | Production | Production Manager |
Paul Zastupnevich | Crew | Costume & Make-Up | Costume Design |
Ruby Ford | Crew | Costume & Make-Up | Hairstylist |
Stan Jolley | Crew | Art | Production Design |
 Stirling Silliphant | Crew | Writing | Screenplay |
Stuart A. Reiss | Crew | Art | Set Decoration |
Tony Lloyd | Crew | Costume & Make-Up | Makeup Artist |
Arthur Herzog III | Crew | Writing | Novel |
George E. Swink | Crew | Crew | Post Production Supervisor |
 Alejandro Rey | Cast | Actor | Dr. Martinez |
Arell Blanton | Cast | Actor | Sergeant |
 Arthur Space | Cast | Actor | Engineer |
 Ben Johnson | Cast | Actor | Felix |
 Bradford Dillman | Cast | Actor | Maj. Baker |
 Cameron Mitchell | Cast | Actor | Gen. Thompson |
 Christian Juttner | Cast | Actor | Paul Durant |
 Chuck Hayward | Cast | Actor | Standby Engineer |
 Don 'Red' Barry | Cast | Actor | Pete Harris |
Doria Cook-Nelson | Cast | Actress | Mrs. Durant |
 Elizabeth Rogers | Cast | Actress | Woman Scientist |
Ernie F. Orsatti | Cast | Actor | Duty Officer |
 Fred MacMurray | Cast | Actor | Maj. Clarance Tuttle |
 Henry Fonda | Cast | Actor | Dr. Walter Krim |
Howard Culver | Cast | Actor | Airman #2 |
Jim Galante | Cast | Actor | Doctor |
John Furlong | Cast | Actor | Cameraman |
 John Otrin | Cast | Actor | Wild Lines (uncredited) |
 José Ferrer | Cast | Actor | Dr. Andrews |
 Katharine Ross | Cast | Actress | Capt. Helena Anderson |
Ken Clayton | Cast | Dr. Moore (uncredited) | |
 Lee Grant | Cast | Actress | Anne MacGregor |
 Leoda Richards | Cast | Actress | Briefing Guest (uncredited) |
 Michael Caine | Cast | Actor | Brad Crane |
Michael Sheehan | Cast | Airman #1 | |
 Monty O'Grady | Cast | Actor | Briefing Guest (uncredited) |
 Morgan Paull | Cast | Actor | Dr. Newman |
Norman Stevans | Cast | Actor | Briefing Guest (uncredited) |
 Olivia de Havilland | Cast | Actress | Maureen Schuester |
 Patrick Culliton | Cast | Actor | Sheriff Morrison |
 Patty Duke | Cast | Actress | Rita |
 Richard Chamberlain | Cast | Actor | Dr. Hubbard |
 Richard Widmark | Cast | Actor | Gen. Thaddeus Slater |
 Slim Pickens | Cast | Actor | Jud Hawkins |
Stephen Powers | Cast | Radarman | |
Tony Haig | Cast | Actor | Officer #2 |
Trent Dolan | Cast | Actor | Radio Sergeant |
 Steven Marlo | Cast | Actor | Pilot #1 |
Chris Capen | Cast | Actor | Lieutenant |
Mike Johnson | Cast | Actor | Burning Man (uncredited) |
 Art Balinger | Cast | Actor | Radio Announcer |
Marneen Fields | Cast | Actress | Train Passenger (uncredited) |
 Lawrence Moran | Cast | Actor | Colonel's Son (uncredited) |
 Bob Harks | Cast | Actor | Townsman (uncredited) |
Nico Stevens | Cast | Actor | Briefing Guest (uncredited) |
George Simmons | Cast | Nurse | |
Chris Petersen | Cast | Actor | Hal |
Jenifer Taurins | Cast | Actress | Nurse |
Barbara Costello | Cast | Actress | Receptionist / Nurse |
David Himes | Cast | Actor | Radioman |
Frank Blair | Cast | Self | |
Jack Krupnick | Cast | Train Passenger (uncredited) | |
Bill Snider | Cast | Actor | Radarman #2 |
Phil Montgomery | Cast | Mechanic | |
Joey Eisnach | Cast | Bee Boy | |
Marcia Nicholson | Cast | Captain | |
Glenn Charles Lewis | Cast | Chemical Warfare Guard | |
Mara Cook | Cast | Secretary | |
Jerry Toomey | Cast | Eddie | |
Robert Varney | Cast | Mr. Durant | |
Buzz Barbee | Cast | Briefing Guest (uncredited) | |
John Williams | Cast | Launching Officer | |
| Person | Type | Job | Role(s) |
