USA
Mike Nelson is a Scuba Diver in the days when it was still very new. He works alone and the plot was always mostly carried through his voice over narrations. These gave the show a flavor of a radio program. Typical adventures were finding a downed satellite or sunken treasure. - IMDb
| Abenteuer unter Wasser |  Austria |
| Abenteuer unter Wasser |  West Germany |
| Abenteuer unter Wasser | West Germany |
| Aventura Submarina (new title) |  Brazil |
| Avventure in fondo al mare |  Italy |
| Caza submarina |  Argentina |
| Investigador submarino |  Ecuador |
| Investigador submarino |  Spain |
| El Investigador submarino |  Mexico |
| Investigadores del Mar |  Chile |
| Operación: Rescate (literal title) | Spain |
| Remous |  France |
| Sea Hunt |  Australia |
| Sea Hunt |  Canada |
| Sea Hunt | Canada |
| Sea Hunt |  Finland |
| Sea Hunt |  United Kingdom |
| Sea Hunt |  Hong Kong |
| Sea Hunt |  India |
| Sea Hunt |  Netherlands |
| Sea Hunt |  Thailand |
| Sea Hunt | USA |
| Морская охота |  Soviet Union |
| 潜水王マイク・ネルソン |  Japan |
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Eugene Mazzola [13] | Don Juan (TV Episode: Amigo) (1961) |
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Ricky Klein | Joey Turner (TV Episode: Pirate Gold) (1960) |
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Morgan Brittany [9] | Cindy (TV Episode: Cindy) (1960) |
