| Director | Byron Haskin |
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| Cat | Gene Barry(Actor) |
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| Ann Robinson(Actress) |
| Les Tremayne(Actor) |
| Robert Cornthwaite(Actor) |
| Henry Brandon(Actor) |
| Jack Kruschen(Actor) |
| George Pal(Actor) |
| Voice Artist | Cedric Hardwicke/Sir Cedric Hardwicke |
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| Taichiro Hirokawa |
| Masako Ikeda |
| Yasuo Hisamatsu |
| Ichiro Murakoshi |
| Shinji Nakae |
| Michio Hazama |
| Hisashi Katsuta |
| Fumio Matsuoka |
| Kaneta Kimotsuki |
| Osamu Kato |
| Atsushi Ii |
| Yuzuru Fujimoto |
| Yuji Fujishiro |
| Syozo Hirabayashi |
| Hajime Koseki |
| Kenichi Ogata |
| Masayuki Kato |
| Tomomichi Nishimura |
| Yoshino Ohtori |
| Issei Masamune |
| Masashi Hirose |
| Yuji Mikimoto |
| Writer | H.G. Wells/Herbert George Wells |
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| Screenwriter | Barré Lyndon/Barre Lyndon/Alfred Edgar |
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| Original music | Leith Stevens |
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| Cinematographer | George Barnes |
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| Producer | George Pal |
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| Paramount Pictures |
| Executive Producer | Cecil B. DeMille/Cecil B. De Mille |
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| Distributing agency | Paramount Pictures |
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| Special Effects | Gordon Jennings |
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| Art Director | Albert Nozaki |
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| Hal Pereira |
| Sam Comer |
| Emile Kuri |
| Costume Designer | Edith Head |
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| Hair Make-Up Department | Wally Westmore |
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| Sound Department | Loren L. Ryder |
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