| Person | Type | Job | Role(s) |
|---|---|---|---|
 Art Cruickshank | Crew | Crew | Special Effects |
Charles F. Wheeler | Crew | Camera | Director of Photography |
Chuck Keehne | Crew | Costume & Make-Up | Costume Design |
Cotton Warburton | Crew | Editing | Editor |
 Dick Warlock | Crew | Crew | Stunt Coordinator |
E. Preston Ames | Crew | Art | Art Direction |
Eustace Lycett | Crew | Crew | Special Effects |
Evelyn Kennedy | Crew | Sound | Music Editor |
Harrison Ellenshaw | Crew | Visual Effects | Matte Painter |
Herb Taylor | Crew | Sound | Sound Supervisor |
Jack Hayes | Crew | Sound | Orchestrator |
Jan Williams | Crew | Production | Associate Producer |
John B. Mansbridge | Crew | Art | Art Direction |
John D. Bloss | Crew | Production | Production Manager |
 Lalo Schifrin | Crew | Sound | Original Music Composer |
Lola Kemp | Crew | Costume & Make-Up | Hairstylist |
Norman Rockett | Crew | Art | Set Decoration |
 Norman Tokar | Crew | Directing | Director, Co-Producer |
Robert J. Schiffer | Crew | Costume & Make-Up | Makeup Artist |
 Ron Miller | Crew | Production | Producer |
Ross Reynolds | Crew | Crew | Pilot |
Ted Key | Crew | Writing | Writer |
Danny Lee | Crew | Crew | Special Effects |
Arthur J. Vitarelli | Crew | Directing | Second Unit Director |
Emily Sundby | Crew | Costume & Make-Up | Costume Design |
Bob McLing | Crew | Art | Assistant Property Master |
Christopher N. Seiter | Crew | Production | Unit Production Manager |
George Fredrick | Crew | Sound | Sound Editor |
Lyndsey Schenk | Crew | Sound | Foley Mixer |
Eric A. Hulett | Crew | Art | Set Dresser |
Bud Maffett | Crew | Sound | Sound Mixer |
Ben Hendricks | Crew | Sound | Sound Editor |
Gene Sultan | Crew | Directing | Assistant Director |
Bill Carroll | Crew | Directing | Second Assistant Director |
Don Spinney | Crew | Crew | Animal Coordinator |
 Alan Young | Cast | Actor | Dr. Wenger |
 Alice Backes | Cast | Actress | Farmer's Wife |
Arnold Soboloff | Cast | NASA Executive | |
 Dal McKennon | Cast | Actor | Farmer |
 Gil Stratton | Cast | Actor | 1st NASA Scientist |
 Hank Jones | Cast | Actor | Officer |
 Hans Conried | Cast | Actor | Dr. Heffel |
 Harry Morgan | Cast | Actor | General Stilton |
 Henry Slate | Cast | Actor | Sandwich Man |
Howard Platt | Cast | Actor | Col. Woodruff |
 Jackson Bostwick | Cast | Actor | Additional Voices (voice) (uncredited) |
 James Hampton | Cast | Actor | Capt. Anderson |
 Jerry Fujikawa | Cast | Actor | 2nd E.R.L. Expert |
 Jesse White | Cast | Actor | Earnest Ernie |
 Jim Begg | Cast | Actor | Dydee Driver |
 John Alderson | Cast | Actor | Mr. Smith |
 Joseph G. Medalis | Cast | Sucker | |
 Ken Berry | Cast | Actor | Frank |
 McLean Stevenson | Cast | Actor | Link |
Mel Carter | Cast | 1st Soldier | |
 Peter Renaday | Cast | Actor | Bailiff |
 Ralph Manza | Cast | Actor | Weasel |
 Rick Hurst | Cast | Actor | Dydee Guard |
 Roddy McDowall | Cast | Actor | Mr. Stallwood |
Roger Pancake | Cast | Red | |
Roger Price | Cast | Actor | 1st E.R.L. Expert |
 Ronnie Schell | Cast | Actor | Jake (Voice) / Sgt. Duffy |
 Sandy Duncan | Cast | Actress | Liz |
 Sorrell Booke | Cast | Actor | Presiding Judge (uncredited) |
 Tom Pedi | Cast | Actor | Honest Harry |
 William Prince | Cast | Actor | Mr. Olympus |
Rickie Sorensen | Cast | Actor | Technician |
Tiger Joe Marsh | Cast | Actor | Omar |
Tom Jackman | Cast | Army Engineer | |
Jana Milo | Cast | 2nd NASA Scientist | |
Fred L. Whalen | Cast | Sarasota Slim | |
| Person | Type | Job | Role(s) |
