 Albert DekkerSecretary of Defense | Secretary of Defense |
 Brian DonlevyGen. Terry Arnold | Gen. Terry Arnold |
 Diane FindlaySgt. Susan Embers | Sgt. Susan Embers |
 John BaragreyCapt. Lovell | Capt. Lovell |
 Dick O'NeillGen. O'Neill | Gen. O'Neill |
| MMort MarshallJules Manning | Jules Manning |
 Alan OppenheimerDr. Contrare | Dr. Contrare |
| SSteve ZachariasSen. Billings | Sen. Billings |
| TThomas StubblefieldJ.T. Standish | J.T. Standish |
| GGene BuaLt. Clark | Lt. Clark |
| BBob CarrawayLt. Simpson | Lt. Simpson |
 John McCurryA1C Hopkins | A1C Hopkins |
| WWalter ArnoldAmerican Ambassador | American Ambassador |
 Louis ZorichSoviet ambassador | Soviet ambassador |
| RRobin CravenBritish ambassador | British ambassador |
 Bernard GrantDr. Hidaka (voice) | Dr. Hidaka (voice) |
| LLarry RobinsonAoyagi (voice) | Aoyagi (voice) |
| PPaulette RubinsteinKyoke (voice) | Kyoke (voice) |
| LLucy MartinNobuyo (voice) | Nobuyo (voice) |
 Corinne OrrToshio (voice) | Toshio (voice) |
 Peter FernandezProfessor Murase / Captain Foster / New York newsreader / Mr. Ueda (voices) | Professor Murase / Captain Foster / New York newsreader / Mr. Ueda (voices) |
 Kenneth HarveyChidori Maru navigator (voice) | Chidori Maru navigator (voice) |
 Jack Curtisnews announcer (voice) | news announcer (voice) |
| WWilliam Griffismisc. roles (voice) | misc. roles (voice) |
 Eiji FunakoshiDr. Hidaka | Dr. Hidaka |
 Michiko SugataNobuyo | Nobuyo |
| HHarumi KiritachiKyoke | Kyoke |
