- Francis Lederer
- Michael Lanyard aka The Lone Wolf
- Frances Drake
- Princess Thania of Arvonne
- Olaf Hytten
- Jenkins
- Walter Kingsford
- Grand Duke Gregor de Meyerson
- Leona Maricle
- Baroness Cambrell
- Albert Dekker
- Marquis Louis de Meyerson
- Maurice Cass
- Alfonse Fromont - Hotel Manager
- Bess Flowers
- Davna - Lady in Waiting
- Ruth Robinson
- The Queen of Arvonne
- Pio Peretti
- Prince Paul of Arvonne
- Eddie Fetherston
- Mace - Henchman
- George Beranger
- Hotel Desk Manager
- Eugene Borden
- Headwaiter
- Aileen Carlyle
- Bertha
- Oliver Cross
- Hotel Guest
- Dick Curtis
- Palace Vault Guard
- Jack Deery
- Hotel Guest
- Vernon Dent
- Rene Ledaux
- Otto Fries
- Peter - Rifleman
- Roger Gray
- Carl - Rifleman
- Sam Harris
- Hotel Guest
- Al Herman
- Otto - Butler
- Frank Leigh
- Dmitri - Major-Domo
- Eric Mayne
- Chancellor of the Crown
- Lucille Ward
- Hilda - Housekeeper
