Cast
- Frank Sundström as Peter Ilich Tchaikovsky
- Audrey Long as Princess Amalya
- Cedric Hardwicke as Grand Duke
- Mikhail Rasumny as Sergei Ivanov
- Mikhail Rasumny as Stephen Ivanov
- Gale Sherwood as Sophia Mirova
- Serge Krizman as Ivan
- Charles Trowbridge as Jurgensen
- Kate Drain Lawson as Nurse
- Lester Sharpe as Nikolai Rubenstein
- Gil Frye as Kolya
Crew
- Benjamin Glazer · Director
- Benjamin Glazer · Writer
- Bernard Schubert · Writer
- Nat W. Finston · Producer
- Theodore Reed · Producer
- Roland Totheroh · Cinematographer
- Richard V. Heermance · Editor
- Otho Lovering · Editor