Vampire (mythology)

Vampires are creature affected by the Great Vampires. Though there are vampire legends on at least 17 planets (and vampires on countless more), the most commonly seen were Humans.

Human vampires are pale with fangs and unusual facial markings. They have increased strength and have hypnotic powers, being able to control Gallifreyans, Alzarians and bats. Vampires feed on the blood of other creatures, but they prefer that of a living creature. Though they are technically immortal, if the great vampire who powers them dies, they quickly age and distingrate. (DW: State of Decay)

The Doctor mentions how legends state that vampires can only be killed by a stake to the heart (like the Great Vampires). They also can't cross running water and are injured by sunlight. Whether these are true or just myths is unknown.