Ann Corio

as Kuhlaya

Buster Crabbe

as Captain Gary Hart

Evelyn Wahl

as Frau Anna Lukas

Paul Bryar

as Sergeant Mike Jenkins

Milton Kibbee

as Dr. Thomas Harrigan

Arno Frey

as Herr George Lukas

Jess Lee Brooks

as Chief Selangi

Manart Kippen

as Major Renault - Commandant