Silent
The Silence were members of the Church of the Silence, formerly the Papal Mainframe, were also called the Confessional Priests. They were genetically engineered by the Church to allow people to confess their sins without remembering doing so. They were fashioned so that anyone looking at them would forget their encounter when they looked away. A renegade batch traveled back in time, influencing human history to attempt to create a fixed death for the Doctor. This renegade group was known to the Doctor as Silents.
Appearance
The Silence were humanoid in shape and stood around seven feet tall. They had bulbous heads with grey, mouthless faces. Their hands had four fingers. Their eyes were completely dark and they spoke in deep, raspy voices and made growling or clicking noises.
The renegade priests wore black suits and ties, making them look like 20th Century government workers. Those of the main Papal Mainframe group dressed all in black, wearing black suits with black high-collard shirts.
Powers/Abilities
Silence were uniquely “memory-proof” meaning that anyone who saw them would instantly forget about them when the person looked away, even if they saw a photograph of a Silent. Anyone who looked at them would instantly remember all previous encounters. Even if you forgot them when you looked away, the Silence could still be heard (this was how River shot down a Silent without looking at it).
The Silents were impervious to some types of scanning devices.
They influenced the actions of others by issuing commands to anyone looking at them. These commands acted as post-hypnotic suggestions so that they remained even when the person looked away.
The Silents employed humanoid operatives who wore eye drives (patches) that artificially recorded information and fed it directly into the brain, allowing the person to remember the aliens after looking away. These could also be used to remotely kill the operatives.
Silents could also absorb electricity, increase it a hundred-fold, and fire it from their hates. This energy discharge could obliterate victimes.
They were very strong, but they could be killed by enough gunfire. They could also be killed by a single, direct hit from an energy weapon.
Appearances
Prequel-The Impossible Astronaut (Webcast)
The Impossible Astronaut/Day of the Moon (TV)
Closing Time (TV)
Prequel - The Wedding of River Song (TV)
The Wedding of River Song (TV)
The Gunpowder Plot (Game)
The Eternity Clock (Game)
The Time of the Doctor (TV)