Skinwalker

Skinwalkers are a race of Supernaturals who have the power to change shape. They can appear in the form of any animal or any single person, even able to mimic vocal sounds and mannerisms. While not all Skinwalkers are criminal, the power to masquerade as someone else is tempting and many Skinwalkers soon find themselves scouring the world as master thieves and hitmen.
Skinwalkers assume the form and vocalizations of others by skinning them and donning the epidermis as a suit which transforms into their 'new look.'