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This edge-of-your-seat thriller features Hans Conried and Tim Holt in a terrifying adventure about ocean-dwelling, radioactive, prehistoric beings who becom
Original Release
06/14/1957
US Release
06/14/1957
Cast
| Name | Character |
|---|
| Tim Holt | Lt. Cmdr. John 'Twill' Twillinger |
| Audrey Dalton | Gail MacKenzie |
| Hans Conried | Dr. Jess Rogers |
| Barbara Darrow | Jody Simms |
| Max Showalter | Dr. Tad Johns |
| Harlan Warde | Lt. Robert 'Clem' Clemens |
| Gordon Jones | Sheriff Josh Peters |
| Mimi Gibson | Sandy MacKenzie |
| Marjorie Stapp | Connie Blake |
| Jody McCrea | Seaman Fred Johnson |
Directors
Writers
Cast
| Name | Character |
|---|
| Tim Holt | Lt. Cmdr. John 'Twill' Twillinger |
| Audrey Dalton | Gail MacKenzie |
| Hans Conried | Dr. Jess Rogers |
| Barbara Darrow | Jody Simms |
| Max Showalter | Dr. Tad Johns |
| Harlan Warde | Lt. Robert 'Clem' Clemens |
| Gordon Jones | Sheriff Josh Peters |
| Mimi Gibson | Sandy MacKenzie |
| Marjorie Stapp | Connie Blake |
| Jody McCrea | Seaman Fred Johnson |
| Wallace Earl Laven | Sally |
| Don Ames | Sailor |
| Robert Benevides | Seaman Morty Beatty / Sonarman 2nd Class Morty Beatty |
| John Carlyle | Monster Victim |
| John Close | Deputy Larry |
| Walt Davis | Sailor |
| Harry Denny | Restaurant Patron |
| Michael Dugan | Clarke / Clark |
| Billy Engle | Waiter |
| William Forrest | Admiral Greenhouse / Rear Adm. Greenhouse |
Producers
| Name | Role |
|---|
| Arthur Gardner | Producer |
| Jules V. Levy | Producer |
