Werner Krauss

as Dr. Caligari

Conrad Veidt

as Cesare

Friedrich Fehér

as Francis

Lil Dagover

as Jane

Hans Heinrich von Twardowski

as Alan

Rudolf Lettinger

as Dr. Olsen

Henri Peters-Arnolds

as Young Doctor (uncredited)

Rudolf Klein-Rogge

as Criminal (uncredited)

Hans Lanser-Rudolf

as Old Man (uncredited)

Ludwig Rex

as Murderer (uncredited)

Elsa Wagner

as Landlady (uncredited)