Agent Brown was an Agent who aided Agent Smith in his quest to capture Morpheus so as to obtain the codes to Zion and end the human rebellion. He pursued Trinity across several rooftops in the city early on, and very nearly caught her, but she escaped. Later, Brown helped Smith and Agent Jones defend their headquarters when Trinity and Neo arrived to rescue Morpheus. After Neo "killed" Smith, Brown joined Jones in running away, a very un-Agentlike course of action. Afterwards, it is highly likely that Brown was deleted in favor of the more upgraded Agents.