Natalya Bondarchuk

as Hari

Donatas Banionis

as Kris Kelvin

Jüri Järvet

as Dr. Snaut

Vladislav Dvorzhetsky

as Henri Berton

Mykola Hrynko

as Kelvin's Father

Anatoliy Solonitsyn

as Dr. Sartorius

Olga Barnet

as Kelvin's Mother

Vitalik Kerdimun

as Henri Berton's Son