Name – A Positives
Species – Human
Planet – Earth
Temperament – Victims
Appearances – The Christmas Invasion

One third of the Earth’s population, those with A Positive blood are hypnotised by the Sycorax using blood control. They climb to the top of the nearest tall building and wait for the order to jump. The A Positives include the whole royal family, Sally Jacobs from U.N.I.T., one third of Torchwood personnel, Jason from the same floor of the flats Jackie lives on and millions more.

When The Doctor breaks the spell they all step back from the edge and are saved.