Javier "Harvey" Guillén (Latin American Spanish:[xaˈβjeɾ ˈxaɾβi ɣiˈʝen]; born May 3, 1990) is an American actor. He is best known for his role as the human familiar Guillermo de la Cruz in the television series What We Do in the Shadows.
Guillén is the son of Mexican immigrants. He adopted the name Harvey when school teachers could not pronounce his first name. Guillén attended Citrus College, completing the three-year Citrus Singers program in 2005. His father, who was the first person who encouraged him to pursue acting, died of lung cancer in 2017.
Guillén speaks Spanish, English, and Japanese—the last acquired during a 13-month visit to Japan. He identifies as queer.
Guillén at the 2022 Phoenix Fan Fusion
Guillén has appeared in recurring roles on television series such as Alistair Delgado on Huge (2010), Cousin Blobbin on The Thundermans (2013–2018), George Reyes in Eye Candy (2015), and Benedict Fenwick on The Magicians(2017–2018). He also appeared in the 2013 film The Internship.
Beginning in 2019, Guillén played the role of Guillermo, the vampires' human familiar, in the FX television series What We Do in the Shadows. He was set to appear in Quibi's science fiction drama series Don't Look Deeper before the platform shut down in December 2020.
Guillén has received considerable acclaim for his role as Guillermo. TheWrap included Guillén in a list of "2019 Emmy Contenders". Hank Steuver, in his review of What We Do in the Shadows in The Chicago Tribune, stated that Guillén "provides at least half the big laughs" in the show.
Guillén provided the voice of Funny the Magic House in Mickey Mouse Funhouse. He played Nightwing in season 3 of Harley Quinn.
In 2022, Guillén provided the voice for the comedic sidekick character Perrito in Puss in Boots: The Last Wish.
In 2023, Guillén appeared on The Late Show with Stephen Colbert in a skit as Representative George Santos.
In 2024, Guillén reprised his role as Cousin Blobbin from The Thundermans in The Thundermans Return. He also provided the voice of Odie in The Garfield Movie and played Vassago in Helluva Boss.
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2025
2025
as Claudio
2025
as Angel
2025
as Eli
2024
as Terry
2024
as Buddy (voice)
2024
as Odie (voice)
2024
as Blobbin
2024
as Self
2023
as Gabo (voice)
2023
as Renato
2023
as Shitstain (voice)
2023
as Dr. Sanchez
2023
as (voice)
2023
as Perrito (voice)
2023
as Square (voice)
2022
as Perrito (voice)
2022
as DJ Twisted Bristle
2022
as Self - Judge
2022
as Andy
2022
as Pelpel / Villager 1 (voice)
2022
as Pelpel (voice)
2022
as Self - Actor
2022
as José the Spider Receptionist (voice)
2022
as Jasper
2022
as Genie / Wishbone Salesman (voice)
2021
2021
as Funny (voice)
2021
as Funny
2021
as Joachim Wolfson
2020
as Marvin
2020
as Renato
2020
2020
as George
2019
as Nightwing / Alvin (voice)
2019
as Nightwing / Clerk (voice)
2019
as Nightwing / Dick Grayson (voice)
2019
as Nightwing (voice)
2019
as Guillermo de la Cruz
2018
as Self - Contestant
2018
as Nick
2018
as Lopez
2018
as Lonnie Gregory
2017
as Holt Thorne
2017
as Luke
2017
2017
as Gary
2016
as Self - Guest Judge
2016
as Fish Store Manager
2016
as Steve
2016
as August
2015
as Benedict Pickwick
2015
as Beans
2015
as George Reyes
2013
as Blobbin
2013
2013
as Zach
2013
as Phillip Hensler
2012
as Glenn
2012
as Carl
2012
as Andy
2011
2010
as Self - Guest Judge
2009
as Alton (voice)
2009
as Self - Guest Judge
2008
as Bobby Gomez
as Paul
as Eugenio
as Harvey Guillén