When Lieutenant Fisher is attacked and an essential component for a new device is stolen from the control tower, all signs point to a traitor within Marineville. Troy believes that Commander Shore might be the spy and tries to get proof.
| Actor | Role |
|---|---|
 Don MasonCaptain Troy Tempest (voice) | Captain Troy Tempest (voice) |
 Robert EastonLieutenant George Lee 'Phones' Sheridan / WSP Commander (voice) | Lieutenant George Lee 'Phones' Sheridan / WSP Commander (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 GrahamLieutenant Misen / Zero Red / Radio (voice) | Lieutenant Misen / Zero Red / Radio (voice) |