Alpha Skinwalker

The Alpha Skinwalker is the original skinwalker from which all other skinwalkers come from (aka the Alpha). The Alpha Skinwalker has yet to make an appearance in the show, but in All Dogs Go To Heaven, we learn that he is preparing skinwalkers as sleeper agents in an upcoming war. With the mother (Eve) dead, it is assumed that these plans have been abandoned.

The Alpha Skinwalker is not mentioned as being one of the Alphas captured and sold to Crowley, so he may still be alive and in hiding.