A dangerous combination of radiation and insecticide causes the unfortunate Scott Carey to shrink, slowly but surely, until he is only a few inches tall. His home becomes a wilderness where he must survive everything from spiders living in the cellar to his beloved cat.
| Production | Albert Zugsmith | Producer |
| Writing | Richard Matheson | Screenplay |
| Writing | Richard Alan Simmons | Screenplay |
| Directing | Jack Arnold | Director |
| Camera | Ellis W. Carter | Director of Photography |
| Writing | Richard Matheson | Novel |
| Costume & Make-Up | Jay A. Morley Jr. | Costume Design |
| Art | Robert Clatworthy | Art Direction |
| Art | Russell A. Gausman | Set Decoration |
| Editing | Albrecht Joseph | Editor |
| Art | Ruby R. Levitt | Set Decoration |
| Art | Alexander Golitzen | Art Direction |
| Costume & Make-Up | Bud Westmore | Makeup Artist |
| Costume & Make-Up | Joan St. Oegger | Hairstylist |
| Sound | Joseph Gershenson | Music Supervisor |
| Directing | Dorothy Hughes | Script Supervisor |
| Sound | Leslie I. Carey | Sound |
| Sound | Robert Pritchard | Sound |
| Directing | William Holland | Assistant Director |
| Visual Effects | Everett H. Broussard | Visual Effects |
| Sound | Ray Anthony | Musician |
| Lighting | Tom Ouellette | Gaffer |
| Camera | Robert Pierce | Assistant Camera |
| Costume & Make-Up | Rydo Loshak | Wardrobe Master |
| Costume & Make-Up | Rydo Loshak | Costume Design |
| Crew | Henry Janssen | Cableman |
| Visual Effects | Roswell A. Hoffmann | Visual Effects |
| Visual Effects | Clifford Stine | Visual Effects |
| Costume & Make-Up | Jack Kevan | Makeup Artist |
| Sound | Bob Hirsch | Sound Editor |
| Sound | George Ohanian | Sound Editor |
| Sound | Irving Gertz | Original Music Composer |
| Sound | Earl E. Lawrence | Original Music Composer |
| Sound | Hans J. Salter | Original Music Composer |
| Sound | Herman Stein | Original Music Composer |
| Costume & Make-Up | Martha Bunch | Costume Design |
| Costume & Make-Up | Virginia Jones | Hairdresser |
| Production | Bob Larson | Assistant Unit Manager |
| Production | Lew Leary | Unit Manager |
| Directing | Wilbur Mosier | Assistant Director |
| Art | Floyd Farrington | Props |
| Art | Ed Keyes | Property Master |
| Crew | Whitey McMahon | Prop Maker |
| Art | Roy Neel | Assistant Property Master |
| Sound | Donald Cunliffe | Sound Recordist |
| Sound | Roger A. Parish | Boom Operator |
| Crew | Cleo E. Baker | Special Effects |
| Crew | Fred Knoth | Special Effects |
| Camera | William Dodds | Camera Operator |
| Camera | Stanley Guliver | Key Grip |
| Camera | Jim Hilbert | Grip |
| Camera | Everett Lehman | Best Boy Grip |
| Camera | Tom McCrory | Additional Photography |
| Camera | Richard Walling | Still Photographer |
| Costume & Make-Up | Martha Bunch | Wardrobe Master |
| Sound | Ethmer Roten | Musician |
| Production | Ray Gockel | Production Coordinator |
