Dana Andrews

Igor Gouzenko

Gene Tierney

Anna Gouzenko

June Havoc

Nina Karanova

Berry Kroeger

John Grubb, aka 'Paul'

Edna Best

Mrs. Albert Foster

Stefan Schnabel

Col. Ilya Ranov

Nicholas Joy

Dr. Harold Preston Norman, aka 'Alec'

Eduard Franz

Maj. Semyon Kulin

Frederic Tozere

Col. Aleksandr Trigorin (as Frederic Tozère)