 Lord Dyfed 'Dy' Brougham is a good friend of Darcy's, who does not appear in "Pride and Prejudice".An old university friend of Darcy's, he hides a quick-witted intelligence and sensitive nature behind a seemingly foppish exterior and reputation, and is very socially active.Brougham is eventually revealed to be an espionage agent employed by the Home Secretary; he is in many ways reminiscent of Percy Blakeney in "The Scarlet Pimpernel".