Beniamino Gigli
— Ettore Vanni
Maria Cebotari
— Fiamma Vanni (his wife)
Peter Bosse
— Mario (his son)
Hans Moser
— Giulio Stückelmeier
Michael Bohnen
— Cesare Doret
Hilde Hildebrand
— Ricarda Doret (his wife)
Alfred Gerasch
— Director
Josef Dahmen
— Stage manager
Werner Pledath
— Doctor
Hilde Maroff
— Nurse
Herbert Gernot
— Lawyer
Philipp Lothar Mayring
Rio Nobile
— Chauffeur