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Lloyd Bridges as Vic Powers |
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Nico Minardos as Ricardo Balboa |
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Michael Ansara as President Eduardo Delgado |
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Joan Blackman as Kathryn Carlyle |
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Marie Gomez as Maria |
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Perry Lopez as Reuben |
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Michael Walker as Bink Binkenshpilder |
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Barry Bartle as Larry Sedgewick |
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Brock Peters as Jonah |
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Irene Dailey as Mrs. Carlyle |
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Alex Montoya as General Tovrea |
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Shepperd Strudwick as Dr. Henry L. Carlyle |
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Oren Stevens as Miguel Vegas |
| Writing | Art Arthur | Story |
| Directing | László Benedek | Director |
| Writing | Andy White | Screenplay |
| Camera | Lamar Boren | Underwater Camera |
| Art | Don Ivy | Set Decoration |
| Sound | George Bruns | Original Music Composer |
| Art | Bruce Bushman | Art Direction |
| Production | Ivan Tors | Executive Producer |
| Editing | John B. Woelz | Editor |
| Directing | Gordon McLean | Assistant Director |
| Production | Gene Levitt | Producer |
| Camera | Edmund Gibson | Director of Photography |
