Mr. Waterbrook is Mr. Wickfield's agent. He hosts the Wickfields when Agnes and Mr. Wickfield come to London on business. It's on this disastrous trip to London that Agnes sees David blind drunk at the theater. Also on this trip, Uriah Heep tells David his whole plan to marry poor Agnes. David also goes to Mr. Waterbrook's house for dinner while the Wickfields are there. Who should he run into but Tommy Traddles? It's at this dinner that David and Tommy Traddles properly bring their friendship back to life.