Harvey Guillén, who plays the vampire-wrangling familiar Guillermo de la Cruz in FX‘s comedy What We Do in the Shadows admitted he was too freaked out to watch the film before he auditioned for the series.
Jemaine Clement and Taika Waititi’s 2014 cult comedy film What We Do in the Shadows was so powerful, that Guillén said watching it beforehand could have put too much pressure on him to nail the audition.
“I love the film, but I loved it after I auditioned,” Guillén told Showbiz Cheat Sheet. “I hadn’t seen the film when I first auditioned because I didn’t want to be influenced by it in my choices in my acting.”
Harvey Guillén shares why he is glad he didn’t watch ‘What We do in the Shadows’ movie beforehand
In retrospect, Guillén is glad he made the choice to go into the audition a little cold. “Because I think if I would have watched it, I would have been freaked out because it’s so good,” he said. “I would have freaked myself out at the audition. Like, ‘I have to do a good job because the movie so good!’ And not watching it, I kind of gave myself that untainted idea of what the character could be.”

Even though Guillén didn’t want the film to influence his audtion, the What We do in the Shadows movie and TV series have some major differences. The series includes energy vampire Colin Robinson, who essentially bores his victims, draining them of their energy. The series also features a main female character, Nadja. Whereas the only female character in the film is Pauline aka “The Beast.”
Also, “There was no Guillermo in the movie, which is great,” Guillén added.
How does ‘What We Do in the Shadows’ movie blend with the TV series?
While there are some differences, the comedic writing, mockumentary style, and the story that follows a group of vampires trying to assimilate into modern society threaded perfectly from the movie to the series.
Also, actors and characters from What We Do in the Shadows movie pop up in the series. Even behind the scenes. Familiar Jackie Van Beek from the film ended up behind the camera on the series.