"Guillermo," played by Harvey Guillén, is Nandor’s familiar. Protecting him during the daylight hours, Guillermo also helps procure Nandor’s daily regimen of blood. Familiars are human servants who, above all, want to become vampires themselves someday. And Guillermo really wants to become a vampire, and if he doesn’t get made one soon, he’ll have wasted ten years of his life.
Guillén was a series regular on MTV's Eye Candy and ABC Family's Huge with recurring roles on The Magicians, The Thundermans and Haters Back Off. His supporting roles include Hulu's new Blumhouse anthology series Into the Dark: The Body and Syfy's Truth or Dare. In film, he is best known for his supporting role alongside Vince Vaughn, Rose Byrne and Owen Wilson in 20th Century Fox’s The Internship. For his work on Raising Hope, Guillén received a GLAAD Award.