| DDiane BeardmoreKay Johnson | Kay Johnson |
| MMarlene LizzioMarlene Hunter | Marlene Hunter |
| TTommy ZahnTed Hunter | Ted Hunter |
| IIgor AllanJean-Louis Martin | Jean-Louis Martin |
| EEd OlsenAmos Dorn, skipper of the Te Vega | Amos Dorn, skipper of the Te Vega |
| WWalter Gibbons-FlyOley, the engineer | Oley, the engineer |
| FFred BoschPete, the cook | Pete, the cook |
| EEddie TitikiSelf | Self |
| RRamineTuria, dancer | Turia, dancer |
| JJay AshworthJim Perry | Jim Perry |
| MMaxine StoneNurse | Nurse |
| DDan MiddletonHer Husband | Her Husband |
| HHans FarkashStefan Koschek | Stefan Koschek |
| JJannice DinnenAnna Koschek | Anna Koschek |
| EEric ReimanDavid Koschek | David Koschek |
| MMargaret RobertsBetty Koschek | Betty Koschek |
| FFrank BasdenChief Operator Communications Base | Chief Operator Communications Base |
| DDon the BeachcomberDon the Beachcomber | Don the Beachcomber |
 Walter CoySupplemental Narrator (voice) | Supplemental Narrator (voice) |
 Ted de CorsiaSupplemental Narrator (voice) | Supplemental Narrator (voice) |
 Orson WellesSupplemental Narrator (voice) | Supplemental Narrator (voice) |
 Shepard MenkenSupplemental Narrator (voice) | Supplemental Narrator (voice) |
