Distribution principale
George Vraca
professor Dan Olteanu
Irina Răchițeanu
Anca Olteanu, Dan's wife
Jules Cazaban
colonel Jack Paleologu
Fory Etterle
engineer Tasca
Ion Lucian
Virgil Sachelarie, professor Olteanu's assistant
Grigore Vasiliu-Birlic
Mișu
Mircea Constantinescu
professor Cristea
Graziela Albini
Sanda Costiniu
Ion Henter
foreign agent Spiridon Dumitrescu
Gheorghe Ionescu-Gion
