Corinne Griffith

as Lady Emma Hart Hamilton

Victor Varconi

as Horatio Nelson

H.B. Warner

as Sir William Hamilton

Ian Keith

as Honorable Charles Greville

Marie Dressler

as Mrs. Hart

Montagu Love

as Capt. Hardy

William Conklin

as Romney

Dorothy Cumming

as Queen Maria Carolina

Michael Vavitch

as King Ferdinand

Evelyn Hall

as Duchess of Devonshire

Helen Jerome Eddy

as Lady Nelson

Ben Alexander

as Young lieutenant

Joan Bennett

as Extra (uncredited)

Andy Devine

as Extra (uncredited)

Joel McCrea

as Extra (uncredited)