Cast & crew
Hello Down There (1969)
Directed by Jack Arnold Written by Art Arthur, John McGreevey, Frank Telford, Ivan Tors
Cast
| Tony Randall | Fred |
| Janet Leigh | Vivian Mathews |
| Ken Berry | Mel |
| Roddy McDowall | Ashbury |
| Charlotte Rae | Ruth |
| Richard Dreyfuss | Unity Webster |
| Jim Backus | Hollister |
| Kay Cole | Lorrie |
| Lou Wagner | Unity Webster |
| Gary Tigerman | Tommie |
| Arnold Stang | Jonah Baldwin |
| Bruce Gordon | Sheridan |
| Lee Meredith | Muffin-Wells |
| Harvey Lembeck | Sonarman |
| Frank Schuller | Sheila Briggs |
| Henny Backus | Unity Webster |
| Bud Hoey | Unity Webster |
| Pat Henning | Reilly |
| Jay Laskay | Philo Gant |
| Charles G. Martin | Petty |
| Frank Logan | Captain Shaw |
| Andy Jarrell | Radioman |
| Lora Kaye | Mussburger's Secretary |
| Merv Griffin | Himself |
| Kay Cole | Lorrie Miller |
| Tony Randall | Fred Miller |
| Janet Leigh | Vivian Miller |
| Ken Berry | Mel Cheever |
| Roddy McDowall | Nate Ashbury |
| Charlotte Rae | Myrtle Ruth |
| Richard Dreyfuss | Harold Webster |
| Jim Backus | T.R. Hollister |
| Lou Wagner | Marvin Webster |
| Jay Laskay | Philo |
| Charles G. Martin | Chief Petty Officer |
| Frank Logan | Captain |
| Andy Jarrell | Radioman |
| Lora Kaye | Secretary |
| Merv Griffin | Himself |
| Gary Tigerman | Tommie Miller |
| Frank Schuller | Alan Briggs |
| Henny Backus | Mrs. Webster |
| Bud Hoey | Mr. Webster |
| Arnold Stang | Jonah |
| Bruce Gordon | Adm. Sheridan |
| Lee Meredith | Dr. Wells |
| Harvey Lembeck | Sonarman |
| Pat Henning | Reilly |
Crew
| Jack Arnold | Director |
| Art Arthur | Story |
| John McGreevey | Writer |
| Frank Telford | Writer |
| Ivan Tors | Story |
| Jeff Barry | Original Music Composer |
| Clifford H. Poland Jr. | Director of Photography |
| George Sherman | Producer |
| Ivan Tors | Producer |
| Erwin Dumbrille | Editor |
| Don K. Ivey | Set Decoration |
| Jack T. Collis | Art Direction |
| William P. Owens | Unit Production Manager |
| Guy Del Russo | Makeup Supervisor |
| William C. Gerrity | Assistant Director |
| Marlana May | Makeup Artist |
| Irene Aparicio | Hairstylist |
| Lamar Boren | Underwater Director of Photography |
| Nat Holt Jr. | Second Assistant Director |
| Leonard Davison | Sound Effects Editor |
| Jordan Klein Sr. | Underwater Camera |
| Gordon Zahler | Music Supervisor |
| Oscar Barber | Camera Operator |
| James Pergola | Camera Operator |
| Walter G. Morris Jr. | Gaffer |
| Ricou Browning | Second Unit Director |
| Nat Holt Jr. | Second Assistant Director |
| Clifford H. Poland Jr. | Director of Photography |
| William P. Owens | Unit Production Manager |
| Jordan Klein Sr. | Underwater Camera |
| Gordon Zahler | Music Supervisor |
| Don K. Ivey | Set Decoration |
| Irene Aparicio | Hairstylist |
| Walter G. Morris Jr. | Gaffer |
| Erwin Dumbrille | Editor |
| Jeff Barry | Original Music Composer |
| Ivan Tors | Producer |
| Ivan Tors | Story |
| George Sherman | Producer |
| Frank Telford | Writer |
| Art Arthur | Story |
| John McGreevey | Writer |
| Jack Arnold | Director |
| Lamar Boren | Underwater Director of Photography |
| Leonard Davison | Sound Effects Editor |
| Ricou Browning | Second Unit Director |
| Guy Del Russo | Makeup Supervisor |
| William C. Gerrity | Assistant Director |
| Oscar Barber | Camera Operator |
| James Pergola | Camera Operator |
| Marlana May | Makeup Artist |
| Jack T. Collis | Art Direction |