George Bryan Brummel, a British military officer, loves Lady Margery, the betrothed of Lord Alvanley. Despite her own desperate love for Brummel, she submits to family pressure and marries Lord Alvanley. Brummel, broken-hearted, embarks upon a life of revelry.

John Barrymoreas Gordon Bryon 'Beau' Brummel
Mary Astoras Lady Margery Alvanley
Willard Louisas Prince of Wales
Carmel Myersas Lady Hester Stanhope
Irene Richas Frederica Charlotte, Duchess of York
Alec B. Francisas Mortimer
Richard Tuckeras Lord Stanhope
George Berangeras Lord Byron
William Humphreyas Lord Alvanley
Clarissa Selwynneas Mrs. Wertham