Cormac
From Tardis Wiki, the free Doctor Who reference
Cormac was a crew member aboard a prison space ship that was transporting a Charonid. When the creature escaped, it body-swapped with Cormac and knocked out the remaining crew with a stun-gun. The Doctor and Amy Pond's arrival resulted in Cormac being returned to his own body and the Charonid being restrained once again. (DWAM: About Face)
