| Person | Type | Job | Role(s) |
|---|---|---|---|
 Ad Schaumer | Crew | Directing | Assistant Director |
Alfred Bruzlin | Crew | Sound | Sound |
 Ben Nye | Crew | Costume & Make-Up | Makeup Artist |
Bert Shefter | Crew | Sound | Original Music Composer |
 Charles Bennett | Crew | Writing | Screenplay |
Fred Zendar | Crew | Crew | Technical Advisor |
George Boemler | Crew | Editing | Editor |
Helen Turpin | Crew | Costume & Make-Up | Hairstylist |
Herman A. Blumenthal | Crew | Art | Art Direction |
 Irwin Allen | Crew | Directing | Director, Screenplay, Producer, Story |
Jack Martin Smith | Crew | Art | Art Direction |
John Lamb | Crew | Camera | Underwater Camera |
John Sturtevant | Crew | Art | Set Decoration |
Johnny Borgese | Crew | Crew | Special Effects |
L.B. Abbott | Crew | Visual Effects | Visual Effects |
Paul Sawtell | Crew | Sound | Original Music Composer, Conductor |
Paul Stader | Crew | Crew | Stunts |
Paul Zastupnevich | Crew | Costume & Make-Up | Costume Design |
Walter M. Scott | Crew | Art | Set Decoration |
Warren B. Delaplain | Crew | Sound | Sound |
Winton C. Hoch | Crew | Camera | Director of Photography |
Max Reese | Crew | Sound | Orchestrator |
Jim Martell | Crew | Crew | Transportation Coordinator |
Johnny Hagner | Crew | Crew | Stunts |
Zale Parry | Crew | Crew | Stunts |
Al Gail | Crew | Production | Producer's Assistant |
Anthony Monaco | Cast | Actor | Cookie |
 Art Baker | Cast | Actor | UN Commentator (Uncredited) |
 Barbara Eden | Cast | Actress | Lieutenant Cathy Conners |
 Charles Tannen | Cast | Actor | CPO Mack Gleason |
 David McLean | Cast | Actor | Ned Thompson (Uncredited) |
 Del Monroe | Cast | Actor | Seaman Kowski |
Edward Rickard | Cast | Actor | Officer (Uncredited) |
 Frankie Avalon | Cast | Actor | Lieutenant Chip Romano |
George Diestel | Cast | Actor | Lieutenant Hodges (Uncredited) |
George Nardelli | Cast | Delegate (Uncredited) | |
 Hal Taggart | Cast | Actor | Delegate (Uncredited) |
Harry Denny | Cast | Delegate (Uncredited) | |
 Henry Daniell | Cast | Actor | Dr. Zucco |
 Howard McNear | Cast | Actor | Congressman Llewellyn Parker |
 Jimmy Murphy | Cast | Actor | Crew Member (Uncredited) |
 Joan Fontaine | Cast | Actress | Dr. Susan Hiller |
 John Litel | Cast | Actor | Vice Admiral B.J. Crawford |
Leslie Sketchley | Cast | Actor | Delegate (Uncredited) |
 Mark Slade | Cast | Actor | Seaman Jimmy 'Red' Smith |
 Michael Ansara | Cast | Actor | Dr. Miguel Alvares |
Paul Power | Cast | Actor | Delegate (Uncredited) |
 Peter Lorre | Cast | Actor | Comm. Lucius Emery |
Raoul Freeman | Cast | Actor | Delegate (Uncredited) |
 Ray Spiker | Cast | Actor | Delegate (Uncredited) |
 Regis Toomey | Cast | Actor | Dr. Jamieson |
Robert Buckingham | Cast | Crew Member (Uncredited) | |
 Robert Easton | Cast | Actor | Sparks |
 Robert Sterling | Cast | Actor | Captain Lee Crane |
 Scott Seaton | Cast | Actor | Delegate (Uncredited) |
 Skip Ward | Cast | Actor | Crew Member |
 Walter Pidgeon | Cast | Actor | Admiral Harriman Nelson |
 Charles Dierkop | Cast | Actor | Seaview Pilot (Uncredited) |
 Al Bain | Cast | Actor | Delegate (Uncredited) |
Robert Locke Lorraine | Cast | Delegate (Uncredited) | |
Robert Strong | Cast | Actor | Delegate (Uncredited) |
Brad Brown | Cast | Guard (Uncredited) | |
 Kendrick Huxham | Cast | Actor | UN Committee Chairman (Uncredited) |
Paul Ravel | Cast | Delegate (Uncredited) | |
Michael Ford | Cast | Actor | Crew Member |
Larry Gray | Cast | Dr. Newmar (Uncredited) | |
 Jonathan Gilmore | Cast | Seaman George Young | |
William Herrin | Cast | Crew Member (Uncredited) | |
Benjie Bancroft | Cast | Delegate (Uncredited) | |
Harry Baum | Cast | Delegate (Uncredited) | |
Michael Cirillo | Cast | Delegate (Uncredited) | |
Esther Ying Lee | Cast | Actress | Delegate (Uncredited) |
Richard Adams | Cast | Actor | Crew Member (Uncredited) |
John Giovanni | Cast | Delegate (Uncredited) | |
Rodger Terry | Cast | Guard (Uncredited) | |
Bhupesh Guha | Cast | Delegate (Uncredited) | |
| Person | Type | Job | Role(s) |
