杰夫·莫罗

Jeff Morrow

饰：Exeter

菲斯·多默格

Faith Domergue

饰：Dr. Ruth Adams

莱克斯·瑞森

Rex Reason

饰：Dr. Cal Meacham

兰斯·富勒

Lance Fuller

饰：Brack

罗素·约翰逊

Russell Johnson

饰：Steve Carlson

道格拉斯·斯宾塞

Douglas Spencer

饰：The Monitor of Metaluna

罗伯特·尼克尔斯

Robert Nichols

饰：Joe Wilson

Karl Ludwig Lindt

饰：Dr. Adolph Engelborg (as Karl L. Lindt)

Jack Byron

饰：Photographer (uncredited)

Anna Demetrio

饰：Dr. Hu Ling Tang (uncredited)

理查德·迪肯

Richard Deacon

饰：Pilot (uncredited)

Coleman Francis

饰：Express deliveryman (uncredited)

Marc Hamilton

饰：Metaluna Inhabitant (uncredited)

Edward Hearn

饰：Reporter (uncredited)

Edward Ingram

Edward Ingram

饰：Photographer (uncredited)

Charlotte Lander

Charlotte Lander

饰：Metaluna woman at decompression console (uncredited)

Orangey

Orangey the Cat

饰：Neutron (uncredited)

Regis Parton

饰：Mutant (uncredited)

奥兰·索尔

Olan Soule

饰：First Reporter (uncredited)

Les Spears

Les Spears

饰：Reporter (uncredited)

Lizalotta Valesca

Lizalotta Valesca

饰：Dr. Marie Pitchener (uncredited)

罗伯特·威廉姆斯

Robert Williams

饰：Webb (uncredited)