Angel Bob Angel Bob was the name the Eleventh Doctor gave to the Weeping Angel from the vault of the " Byzantium " . He called this Angel by that name because it communicated by using a reanimated copy of cleric Bob ' s consciousness . It acted as the representative of its brethren when they fed on the power supply of the " Byzantium " . Biography . Early history and the " Byzantium " . An army of Weeping Angels had wiped out the Aplan race on Alfava Metraxis in the mid - 47th century , but in doing so had remained without a food source to feed on . They were trapped and weakened . Knowing of the fate of its brethren , a Weeping Angel lay patiently waiting in the ruins of Razbahan and feigned being in a " dormant " cycle . Just as it planned , it passed from one private hand to another until it came in possession of a temporal core to help revive its fellow Angels . The opportunity came when it came to be stored in the " Byzantium " . River Song was sent by the Church to find and neutralise it . She got on board the " Byzantium " during her investigation and captured four seconds of footage of the Angel . Before leaving the ship , she warned Alistair it would not reach its final destination . The Angel caused the " Byzantium " to crash on Alfava Metraxis above the Aplan Mortarium where the Angels remained , killing all passengers on - board . The once dormant and weak Angels within the catacombs beneath the temple began to awaken and regenerate . On Alfava Metraxis . Father Octavian and a team of Clerics arrived at the crash site to track down the Angel . To explain what they were up against , Song showed the looped recording of the Angel to the Doctor , Octavian and Amy Pond . While the others left the pod , Amy remained with the recording in its constant loop . Unbeknownst to the expedition , any image of a Weeping Angel " becomes itself " a Weeping Angel . The image in the recording came to life and deadlocked the doors of the pod , trapping Amy within . The Angel projected itself beyond the image and into the room , until Amy was able to exploit a glitch in the recording to turn off the projection of the image . She had , however , stared into the eyes of the projection , opening her " soul " to it . ( TV : " The Time of Angels " ) This produced an image of an Angel in the visual centre of Amy ' s mind , opening her up to manipulation by the Angels , such as hallucinations and death ; as the image of the Angel within her would ultimately become a real Angel . ( TV : " Flesh and Stone " ) The Angel escaped the vault of the " Byzantium " and went through the Maze of the Dead . When the Clerics Christian and Angelo were sent to investigate the further catacombs , the Angel killed them by breaking their necks . It took their central nervous systems and reanimated their consciousness temporarily to lure others to their deaths . It used the same procedure with the Cleric Bob on a more long - term basis , to communicate with the Doctor , Amy , River and the remaining Clerics . The Angel continued to use Bob ' s remains to relay its messages to the Doctor , who began to call it " Angel Bob " . It tried to anger him by having Bob tell him how his words of encouragement to the soldier had been lies . ( TV : " The Time of Angels " ) When the Doctor and the Clerics were surrounded near the " Byzantium " ' s oxygen factory , Bob said the Angels were amused at the Doctor not seeing the crack in time . Angel Bob informed the Doctor in the oxygen factory how the Angels ' manipulation of Amy was just for fun , making him throw away his communication device in anger . As the crack expanded , the Angels ran away and Angel Bob reappeared in person after the Doctor , River and Amy were cornered in the " Byzantium " ' s control room . He attempted to coerce the Doctor into throwing himself into the crack to seal it , saving the Angels and his friends . As the last of the ship ' s energy was waning , the Doctor forced a failure of the gravity field . Angel Bob and the other the Weeping Angels fell into the crack , sealing it and were erased from existence . ( TV : " Flesh and Stone " ) Personality . Angel Bob showed no remorse at killing clerics and also claimed to enjoy doing it when it spoke to the Doctor using Cleric Bob ' s vocal chords and central nervous system . It tormented Amy with a copy of itself by making her think she was turning to stone . ( conjecture ) The Angel was very patient and clever ; the Doctor guessed it had never been dormant but had allowed itself to be captured so it could get the needed power to revive its people . It also possessed a sadistic sense of humour ; it pretended at first to be Cleric Bob making his remains say what had happened to him . ( TV : " The Time of Angels " ) Later , after the copy of itself in Amy made her perform a countdown to the moment when the copy would consume her , Angel Bob indicated it was making her do the countdown for fun . ( TV : " Flesh and Stone " )