Bill was a worker on the Dreadnought in the 23rd century and the fiancé of Stacy Townsend. They hoped to get married at St. Christopher's Church in Norfolk when the Cybermen attacked. He and Stacy fled, but he was captured and taken to their hive, where he underwent partial cyber-conversion. When the Cybermen took over the Doctor's TARDIS, the Eighth Doctor had Stacy remind Bill of their friendship, which allowed him to override his programming and attack the other Cybermen. They killed him, but the distraction allowed the Doctor to expel the Cybermen from his TARDIS. (RT: Dreadnought)