John Barrymore

as Gordon Bryon 'Beau' Brummel

Mary Astor

as Lady Margery Alvanley

Willard Louis

as Prince of Wales

Carmel Myers

as Lady Hester Stanhope

Irene Rich

as Frederica Charlotte, Duchess of York

Alec B. Francis

as Mortimer

Richard Tucker

as Lord Stanhope

George Beranger

as Lord Byron

William Humphrey

as Lord Alvanley

Clarissa Selwynne

as Mrs. Wertham

John J. Richardson

as Poodles Byng

Claire de Lorez

as Lady Manly

Michael Dark

as Lord Manly

Templar Saxe

as Desmond Wertham

James A. Marcus

as Snodgrass the Innkeeper