- Marlene Dietrich
- Princess Sophia Frederica / Catherine II
- John Lodge
- Count Alexei
- Sam Jaffe
- Grand Duke Peter
- Louise Dresser
- Empress Elizabeth Petrovna
- C. Aubrey Smith
- Prince August
- Gavin Gordon
- Capt. Gregori Orloff
- Olive Tell
- Princess Johanna Elizabeth
- Ruthelma Stevens
- Countess Elizabeth 'Lizzie'
- Davison Clark
- Archimandrite Simeon Todorsky / Arch-Episcope
- Erville Alderson
- Chancelor Alexei Bestuchef
- Philip Sleeman
- Count Lestoq
- Marie Wells
- Marie Tshoglokof
- Hans Heinrich von Twardowski
- Ivan Shuvolov
- Gerald Fielding
- Lt. Dmitri
- Maria Riva
- Sophia as a Child
- Eric Alden
- Lackey #5
- Richard Alexander
- Count von Breummer
- Nadine Beresford
- Sophia's Aunt
- Thomas C. Blythe
- Narcissus
- Hal Boyer
- Paul - Lackey #1
- James Burke
- Guard
- Jane Darwell
- Miss Cardell, Sophia's Nurse
- Clyde David
- Narcissus
- John Davidson
- Marquis de la Chetardie
- George Davis
- Jester
- Anna Duncan
- Catherine's Lady-in-Waiting
- Elinor Fair
- Catherine's Lady-in-Waiting
- May Foster
- Elizabeth's Lady-in-Waiting
- Julanne Johnston
- Catherine's Lady-in-Waiting
- Ivan Linow
- Imperial Guardsman
- James A. Marcus
- Innkeeper
- Petra McAllister
- Sophia's Aunt
- Eunice Murdock Moore
- Sophia's Aunt
- Patricia Patrick
- Catherine's Lady-in-Waiting
- Warner Richmond
- Castle Guard
- Blanche Rose
- Sophia's Aunt
- Barbara Sabichi
- Elizabeth's Lady-in-Waiting
- Katherine Sabichi
- Catherine's Lady-in-Waiting
- Sam Savitsky
- Imperial Guardsman
- Dina Smirnova
- Catherine's Lady-in-Waiting
- Elaine St. Maur
- Catherine's Lady-in-Waiting
- Agnes Steele
- Elizabeth's Lady-in-Waiting
- Minnie Steele
- Elizabeth's Lady-in-Waiting
- Belle Stoddard
- Sophia's Aunt
- Akim Tamiroff
- Undetermined Secondary Role
- Kent Taylor
- Paul
- Jameson Thomas
- Lt. Ovitsyn
- Edward Van Sloan
- Herr Wagner
- Bruce Warren
- Lackey
- Leo White
- Beautician Curling Catherine's Hair
- Harry Woods
- Doctor #1
