Commander Shore keeps having nightmares about the time when he was crippled in a sea battle with an underwater craft five years ago and rescued by a mysterious stranger.
| Actor | Role |
|---|---|
 Don MasonCaptain Troy Tempest (voice) | Captain Troy Tempest (voice) |
 Robert EastonLieutenant George Lee 'Phones' Sheridan / Lorado (voice) | Lieutenant George Lee 'Phones' Sheridan / Lorado (voice) |
 Ray BarrettCommander Sam Shore / Sub-Lieutenant John Horatio Fisher (voice) | Commander Sam Shore / Sub-Lieutenant John Horatio Fisher (voice) |
 Lois MaxwellLieutenant Atlanta Shore (voice) | Lieutenant Atlanta Shore (voice) |
 David GrahamCronson (voice) | Cronson (voice) |