Peter Graves

Alec Franklin

Curd Jürgens

Baron "Marchant"

Michael Dante

Konstanine Senyonov

John Carradine

Professor Nikolaeff

Carmen G. Cervera

Nina

Pouri Banaei

Leila

Karin Schubert

Galina Fedorovna

Robert Avard Miller

Stetson

Michael Tietz

Toni Glanert

Mel Novak

Mendoza

Aldo Sambrell

George

Frank Braña

Rigo

Pat Johnson

Atwood

Hosein Gil

Hasan

Tamara Elliot

Iranian Dancer

Walter Stocker

Masters

Curt Lowens

Russian Scientist

Maurice Marsac

Russian General

Michael Ivie

State Department Official

George Briggs

Russian General II

Peter Colt

"Mickey"

Úrsula Grin

Casino Hostess

Herbert Fux

Alfie Martin

Officer (uncredited)