Telepathy

Telepathy was a psychic ability which allowed mind-to-mind communication. The term could also be used to describe and was often linked to mind-control, and certain types of hypnosis. Telepathy could take varied forms; from an exchange of images, experiences (DW: The Three Doctors), to associated emotions and even mind-to-mind "conversation" between two or more individuals (BFA: Worldwide Web), however it was possible for a skilled telepath to monitor the minds of others without being detected. Some species and individuals could use their telepathy at a distance, but others needed to be in close-proximity, and others need to touch the subject they wish to "Read". Time Lords, for example, tended to be touch-telepaths, but weren't always limited in this fashion. Telepathy was a more fully-developed mental ability than Empathy, which simply allowed an individual to sense the emotions of another.

TARDISes such as the Doctor's Type 40 have telepathic abilities from dedicated systems known as Telepathic circuits; among other functions, these translate any language for the passengers.

A rare mineral known as Matricite can block telepathy. (PDA: Synthespians™)

On Yemaya 4 in 2257 several human colonists develop telepathic and telekinetic abilities. (NA: Sleepy)

Telepathic species
Species known to have telepathic powers include:
 * The Time Lords (DW: The Sensorites)
 * Sensorites (DW: The Sensorites)
 * Humans (DW: Planet of the Spiders, The Face of Evil, NA: Sleepy)
 * Eight Legs (DW: Planet of the Spiders)
 * The Xhinn (PDA: Amorality Tale)
 * Eternals (DW: Enlightenment)
 * Kitlings (DW: Survival)
 * Cheetah People (DW: Survival)
 * Boekind (DW: New Earth)
 * Weevils (TW: Combat)
 * The Butterfly People (TW: Greeks Bearing Gifts, SJA: Invasion of the Bane)
 * The Ood (DW: The Impossible Planet, The Satan Pit)
 * Vespiforms (DW: The Unicorn and the Wasp)

Individuals with ability

 * Timothy Latimer (DW: Human Nature, The Family of Blood)
 * Carmen (DW: Planet of the Dead)
 * Luke Smith (SJA: The Lost Boy)
 * Gwyneth (DW: The Unquiet Dead)
 * The Doctor (DW: Fear Her The Girl in the Fireplace'')
 * Jack Harkness (DW: New Earth, Gridlock)
 * Ood Elder (DW: The End of Time)

Devices to facilitate telepathy

 * Telepathic circuits
 * Telepathic recorder
 * IRIS Machine (DW: Planet of the Spiders)
 * Telepathy pendant (TW: Greeks Bearing Gifts)