| Walter Pidgeon | ... | Adm. Harriman Nelson | |
| Joan Fontaine | ... | Dr. Susan Hiller | |
| Barbara Eden | ... | Lt Cathy Connors | |
| Peter Lorre | ... | Comm. Lucius Emery | |
| Robert Sterling | ... | Capt. Lee Crane | |
| Michael Ansara | ... | Miguel Alvarez | |
| Frankie Avalon | ... | Lt (j.g.) Danny Romano | |
| Regis Toomey | ... | Dr. Jamieson | |
| John Litel | ... | Vice-Adm. B.J. Crawford | |
| Howard McNear | ... | Congressman Llewellyn Parker | |
| Henry Daniell | ... | Dr. Zucco | |
| Skip Ward | ... | Crew member | |
| Mark Slade | ... | Seaman Jimmy 'Red' Smith | |
| Charles Tannen | ... | CPO Gleason | |
| Del Monroe | ... | Seaman Kowski (as Delbert Monroe) | |
| Anthony Monaco | ... | Cookie | |
| Michael Ford | ... | Crew member | |
| Robert Easton | ... | Sparks | |
| Jonathan Gilmore | ... | Seaman George Young | |
| rest of cast listed alphabetically: | |||
| Richard Adams | ... | Crew Member (uncredited) | |
| Art Baker | ... | UN Commentator (uncredited) | |
| Robert Buckingham | ... | Crew Member (uncredited) | |
| Charles Dierkop | ... | Pilot of the Seaview (uncredited) | |
| George Diestel | ... | Lt. Hodges (uncredited) | |
| John Giovanni | ... | Italian Delegate (uncredited) | |
| Larry Gray | ... | Dr. Newmar (uncredited) | |
| William Herrin | ... | Crew Member (uncredited) | |
| Kendrick Huxham | ... | UN Chairman (uncredited) | |
| David McLean | ... | Ned Thompson (uncredited) | |
| Jimmy Murphy | ... | Crew Member (uncredited) | |
Directed by | |||
| Irwin Allen | |||
Writing credits | ||
| Irwin Allen | (screenplay) and | |
| Charles Bennett | (screenplay) | |
| Irwin Allen | (story) | |
Produced by | |||
| Irwin Allen | .... | producer | |
Original Music by | |||
| Paul Sawtell | |||
| Bert Shefter | |||
Cinematography by | |||
| Winton C. Hoch | (as Winton Hoch) | ||
Film Editing by | |||
| George Boemler | |||
Art Direction by | |||
| Herman A. Blumenthal | |||
| Jack Martin Smith | |||
Set Decoration by | |||
| Walter M. Scott | |||
| John Sturtevant | |||
Costume Design by | |||
| Paul Zastupnevich | |||
Makeup Department | |||
| Ben Nye | .... | makeup artist | |
| Helen Turpin | .... | hair stylist | |
Second Unit Director or Assistant Director | |||
| Ad Schaumer | .... | assistant director | |
Sound Department | |||
| Alfred Bruzlin | .... | sound | |
| Warren B. Delaplain | .... | sound | |
Special Effects by | |||
| L.B. Abbott | .... | special photographic effects | |
| Johnny Borgese | .... | special effects (uncredited) | |
Stunts | |||
| Johnny Hagner | .... | stunts (uncredited) | |
| Zale Parry | .... | underwater stunts (uncredited) | |
| Paul Stader | .... | stunts (uncredited) | |
Camera and Electrical Department | |||
| John Lamb | .... | underwater cinematographer | |
Music Department | |||
| Max Reese | .... | orchestrator | |
Transportation Department | |||
| Jim Martell | .... | transportation coordinator (uncredited) | |
Other crew | |||
| Al Gail | .... | assistant to producer | |
| Fred Zendar | .... | technical advisor | |
| Full cast and crew | Company credits | External reviews |
| IMDb Adventure section | IMDb USA section |
If you're a sci-fi junkie as I am, this is one of your MUST SEES. Irwin Allen's Nuclear powered "SEAVIEW" is a marvel. Must be seen in letterboxed format to appreciate all the effects. I saw it in the theatres when 1st released and I still am in awe of it. TV series only added to my delight. You'll enjoy this one.