Directed by
| Mort Heilig | ||
| Leon Rhodes | ||
Writing Credits
| J. Anthony Ferlaine | ... | (creator) |
| Joseph Bonaduce | ... | (screenplay) & |
| Ron Ronszel | ... | (screenplay) |
Cast (in credits order)
| Allen Swift | ... | Diver Dan / Finley Haddock / Doc Sturgeon / Skipper Kipper / Horace / Baron Barracuda / Trigger / Seabiscuit the Seahorse (voice) | |
 |
Frank Freda | ... | Diver Dan |
|
|
Suzanne Turner | ... | Miss Minerva the Mermaid |
| Rest of cast listed alphabetically: | |||
|
|
Hal Tunis | ... | Narrator (voice) |
Produced by
| Harvey Blake | ... | associate producer |
| Louis W. Kellman | ... | producer |
| Hal Tunis | ... | executive producer |
Editing by
| Margot Mor | ||
| Arthur Spieller | ||
Art Direction by
| Frank Heininger | ||
Production Management
| Ben Berk | ... | production manager |
Sound Department
| Jack Sky | ... | sound |
Camera and Electrical Department
| Morris Kellman | ... | camera operator |
| John Wynn | ... | lighting |
Music Department
| Trevor Duncan | ... | composer: stock music (uncredited) |
| Van Phillips | ... | composer: stock music (uncredited) |
| Steve Race | ... | composer: stock music (uncredited) |
| James Stevens | ... | composer: stock music (uncredited) |
Script and Continuity Department
| Ruth Clyman | ... | script supervisor |
Additional Crew
| John Caracciolo | ... | puppeteer |
| Martin Kreiner | ... | puppeteer |
| Harold Taylor | ... | puppeteer |