Reapers (COMIC: Four Doctors, AUDIO: Tick-Tock World) were beings linked to time itself. They searched for temporal paradoxes. If the balance of time was disrupted, they would be drawn out in force to remove the offending element.
Altering a fixed point in time, or causing the Blinovitch Limitation Effect could draw out the Reapers. (TV: Father's Day, COMIC: Four Doctors) In other cases where the limitation effect or the changes to a fixed point were part of established history, Reapers were not seen to appear. (TV: Mawdryn Undead, The Wedding of River Song)
Normally, the Time Lords would prevent the appearance of the Reapers and repair the damage to time. (TV: Father's Day) However, following the Last Great Time War, the Time Lords were forced to hide out at the end of the universe to prevent another Time War, (TV: Hell Bent) leaving time more vulnerable to the Reapers as only the Doctor was left to handle repairing the damage. (TV: Father's Day, COMIC: Four Doctors)
The Reapers has been suggested to play 3 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
