Don Mason

Captain Troy Tempest / Solaster Leader (voice)

Robert Easton

Lieutenant George Lee 'Phones' Sheridan / Corda / WSP Commander (voice)

Ray Barrett

Commander Sam Shore / Sub-Lieutenant John Horatio Fisher / King Titan / Various Characters (voice)

Lois Maxwell

Lieutenant Atlanta Shore / Milly Carson / Marineville Tracking Station #2 (voice)

David Graham

Admiral Henry Carson / Marin / Nucella / Various Characters (voice)