The Stingray crew is assigned to make monthly visits to Professor Darren and his team, who have developed a method for making gold from minerals taken from the sea bed.
| Actor | Role |
|---|---|
 Don MasonCaptain Troy Tempest / Sculpin (voice) | Captain Troy Tempest / Sculpin (voice) |
 Robert EastonLieutenant George Lee 'Phones' Sheridan / Surface Agent X-2-Zero / Professor Darek (voice) | Lieutenant George Lee 'Phones' Sheridan / Surface Agent X-2-Zero / Professor Darek (voice) |
 Ray BarrettCommander Sam Shore / King Titan / Chuck (voice) | Commander Sam Shore / King Titan / Chuck (voice) |
 Lois MaxwellLieutenant Atlanta Shore (voice) | Lieutenant Atlanta Shore (voice) |
 David GrahamOink (voice) | Oink (voice) |