Charonid

The Charonids are a race of large brown, mutant-like creatures with giant pincer claws for hands and two-toed feet. They are known by the Eleventh Doctor (who recalls them capable of body-swapping, over a distance, very quickly A giveaway that an individual is possessed by the Charonid is the colour change of eyes to red and behaviour that may be regarded as out of character. ). The Doctor encountered a Charonid onboard a prison ship where it had escaped and after stunning the crew, swapped bodies with Cormac and later Amy before being contained in its own body by the Doctor who held it in a force-field..