Gloria Swanson
— Princess Marie
Ian Keith
— Captain Kavor
George Fawcett
— Archduke
Echlin Gayer
— The King
Mario Majeroni
— Prime Minister
Sidney Herbert
— Archduke's Adviser
Donald Hall
— Court Physician
Baroness DeHedeman
— Lady in waiting
Jane Auburn
— Clothilde
Bert Wales
— Boy
Theodore Lodi
— Minister of War