James Young
Beau Brummel
Clara Kimball Young
Helen Ballarat
?
Charles Chapman
The Prince of Wales
Julia Swayne Gordon
The Duchess
Edwin R. Phillips
Lord Ballarat (as E.R. Phillips)
James Morrison
Lord Alvanley
Etienne Girardot
Isadore - Brummel's Valet
?
Richard Leslie
Lord Beaconsfield (as Dick Leslie)
Helene Costello
Child (uncredited)
Rex Ingram