William Billy David Chambers is the former Chief of Staff to Vice President Sally Langston. It turns out that he was a main player in the Fitz-Tanner scandal because he was desperate to get his boss, Sally, elected as president. Sally later holds a press conference throwing her former right-hand man under the bus, and Billy is devastated by this turn of events. He disappears after these events and doesn't reappear until over year-and-half later.