Bernhard Goetzke

Professor Zange

Natalya Rozenel

Felitsia, professor's wife

Elza Temary

Berta, professor's assistant

Nikolai Khmelyov

Prince Karlstein

Sergei Komarov

Bsheshinski, Jesuit

Vladimir Fogel

Baron, reactionary

Mikhail Doller

Russian student Filonov, professor's assistant

Aleksandr Chistyakov

Pryer, typographer

Alexandr Gromov

Shtrombakh

Anatoli Lunacharsky

Anna Zemtsova

Gyulbike Shcherbatova

Vasili Bokarev

Rich man

Mariya Shlenskaya

Enamored old Polish woman

Daniil Vvedenskiy

(uncredited)

Ivan Lavrov

(uncredited)

Vladimir Tsoppi

(uncredited)