Maximilian Schell
— Marek
Irene Papas
— Ajmi
Raf Vallone
— Victor
Theodore Bikel
— Kisielev
Maria Perschy
— Marusia
Fernando Rey
— Ibram
Jiří Voskovec
— Doctor
Alberto de Mendoza
— Hamlat
Antonio Vico
— Ulug Beg
Vicente Sangiovanni
— Shura
Boyd Holister
— Ukranian NKVD
Danny Steinmann
— NKVD Guard
Mariela Chatlak
— Aka
Carmen Carbonell
— Ulug Beg's Wife
Luís Castro
Luis de Tejada
Antonio Duque
Maruchi Fresno
Fernando Hilbeck
Cris Huerta
Mark Malicz
Andrés Monreal
Ricardo Palacios
Alexander Ramati
Max Slaten
Álvaro Marenco
— Migration agent (uncredited)