When a seemingly indestructible craft is sighted heading towards Marineville on a collision course, the eccentric Professor Burgoyne is called in to help develop a new super missile with which to destroy it.
| Actor | Role |
|---|---|
 Don MasonCaptain Troy Tempest / Missile Unit (voice) | Captain Troy Tempest / Missile Unit (voice) |
 Robert EastonLieutenant George Lee 'Phones' Sheridan / Philippine Station 178 (voice) | Lieutenant George Lee 'Phones' Sheridan / Philippine Station 178 (voice) |
 Ray BarrettCommander Sam Shore / Sub-Lieutenant John Horatio Fisher / Grupa (voice) | Commander Sam Shore / Sub-Lieutenant John Horatio Fisher / Grupa (voice) |
 Lois MaxwellLieutenant Atlanta Shore (voice) | Lieutenant Atlanta Shore (voice) |
 David GrahamProfessor Burgoyne / Noctus / Marineville Tracking Station (voice) | Professor Burgoyne / Noctus / Marineville Tracking Station (voice) |