Atlanta joins the Stingray crew when they investigate why a series of oil rigs keep getting destroyed, and ends up being captured by a race of undersea aliens protecting their home.
| Actor | Role |
|---|---|
 Don MasonCaptain Troy Tempest / Nefir (voice) | Captain Troy Tempest / Nefir (voice) |
 Robert EastonLieutenant George Lee 'Phones' Sheridan / Base (voice) | Lieutenant George Lee 'Phones' Sheridan / Base (voice) |
 Ray BarrettCommander Sam Shore / Rigger Jack (voice) | Commander Sam Shore / Rigger Jack (voice) |
 Lois MaxwellLieutenant Atlanta Shore (voice) | Lieutenant Atlanta Shore (voice) |
 David GrahamOink / Engineer Preston / Gerit / 1st Rigger (voice) | Oink / Engineer Preston / Gerit / 1st Rigger (voice) |