Harvey Guillén is an American actor who is best known for his role as the human familiar Guillermo de la Cruz in the 2019 television series What We Do in the Shadows.

Guillén has appeared in recurring roles on a number of television series, such as Alistair Delgado on Huge, Cousin Blobbin on The Thundermans, George Reyes in Eye Candy, and Benedict Fenwick on The Magicians. He also appeared in the films The Internship, I’m Totally Fine, Werewolves Within, and Cursed Friends.

As a voice actor, he’s voiced Characters in Puss in Boots, Harley Quinn, Kung Foo Panda, Mickey Mouse Fun House, Archer, and Digman!