The week Harvey Guillén learned "What We Do in the Shadows" would end with Season 6 was a rough one for the FX star. That Christmastime call came around the same time he was mourning a death in the family and dealing with a breakup.

"What We Do in the Shadows," the vampire comedy mockumentary series that spun off a movie of the same name, is coming to an end.

What We Do in the Shadows returns for its final season on October 21, bringing the beloved comedy horror series to an end after six seasons. Following the misadventures of a group of vampires and their familiar,