When Admiral Jack Denver, an old buddy of Commander Shore, is frightened by what appears to be the Loch Ness monster whilst fishing in Scotland, he uses his position to order Stingray to investigate the long running mystery.
| Actor | Role |
|---|---|
 Don MasonCaptain Troy Tempest (voice) | Captain Troy Tempest (voice) |
 Robert EastonLieutenant George Lee 'Phones' Sheridan / Andy McGregor (voice) | Lieutenant George Lee 'Phones' Sheridan / Andy McGregor (voice) |
 Ray BarrettCommander Sam Shore / Sub-Lieutenant John Horatio Fisher / Jamie McGregor (voice) | Commander Sam Shore / Sub-Lieutenant John Horatio Fisher / Jamie McGregor (voice) |
 Lois MaxwellLieutenant Atlanta Shore (voice) | Lieutenant Atlanta Shore (voice) |
 David GrahamOink / Admiral Jack Denver (voice) | Oink / Admiral Jack Denver (voice) |