The Boneless are a race of extra-dimensional aliens and the main antagonists of Doctor Who's "Flatline" story, they were officially named "Boneless" by the 12th Doctor after he banished them from Earth after a fierce confrontation, in which he had temporarily been stuck inside the TARDIS.
The Boneless originate from a 2-dimensional universe and continually abducted human beings, trapping them in a 2-dimensional state and torturing them - at first the Doctor believed the Boneless were either curious or trying to learn about humanity and began to try and work on a means to communicate with them.
However the Doctor soon found out the Boneless knew about their victims and furthermore the Boneless were using the TARDIS as a power-source, draining it of power and reducing it dramatically in size.
In order to counter this the Doctor used the Boneless' own power against them and managed to power the TARDIS, flying it across a tunnel just as the Boneless prepared to attack : creating a large force-field in the process.
Angry, the Doctor delivers a powerful speech in which he condemns the Boneless a "monsters" and tells them they are no longer welcome on Earth as he was the defender of humanity : he then cast the creatures back to their own universe.
- The Boneless were named by the Doctor himself, they did not have any known language of their own and did not name themselves : despite the lack of communication the Doctor was confident they were intelligent and knew that they were performing immoral acts but simply "didn't care".
- The Boneless are one of several aliens to experience the "fury of a Time Lord", due to their lack of care for the human lives they take or the suffering they cause.
- It is unknown exactly what the Boneless wanted, though it would seem likely they wished to trap 3-dimensional beings in their reality so as to replace them.
- The Boneless is originally Slavic type of vampire, that is walking bag of blood.