Cast & crew
The Invisible Boy (1957)
Directed by Herman Hoffman Written by Cyril Hume, Edmund Cooper
Cast
| Philip Abbott | Dr. Tom Merrinoe |
| Richard Eyer | Timmie Merrinoe |
| Diane Brewster | Mary Merrinoe |
| Dennis McCarthy | Col. Macklin |
| Alexander Lockwood | Arthur Kelvaney |
| Robert H. Harris | Prof. Frank Allerton |
| John O'Malley | Prof. Baine |
| Harold J. Stone | Gen. Swayne |
| Gage Clarke | Dr. Bannerman |
| Than Wyenn | Prof. Zeller |
| Alfred Linder | Martin / Computer |
| Ralph Votrian | 1st Gate Sergeant |
| Jefferson Dudley Searles | Prof. Foster |
| Gary Vinson | Young soldier (uncredited) |
| Michael Miller | 2nd Gate Sergeant |
| Alvy Moore | Scientist (uncredited) |
| Rayford Barnes | Capt. McLaren (uncredited) |
| Helen Kleeb | Miss Vandergrift (uncredited) |
| Marvin Miller | Robby the Robot (voice) (uncredited) |
| Robby the Robot | Robby |
Crew
| Les Baxter | Original Music Composer |
| Merrill Pye | Art Direction |
| Louis DeWitt | Special Effects |
| Nicholas Nayfack | Producer |
| Irving Block | Special Effects |
| John Faure | Editor |
| Jack Rabin | Special Effects |
| Cyril Hume | Screenplay |
| Edmund Cooper | Story |
| Herman Hoffman | Director |
| Harold E. Wellman | Director of Photography |
| Gus Schroeder | Production Manager |
| Darrell Silvera | Set Decoration |