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Villains Wiki

All built to your specifications, Mister Black Hat, sir.
~ Dr. Flug Slys in the episode Bigger, Badder

Dr. Flug Slys, often simply referred to as Dr. Flug, is the villainous main protagonist of the 2017 Cartoon Network animated TV series Villainous.

He is a scientist who is right-hand man of Black Hat and the archenemy of Goldheart.

He is voiced by Jose Antonio Macías in Spanish and by Todd "Eco Vox" Asayer in the English dub.


Little is known about Dr. Flug's past before the events of Villainous, although it is known that he learned Chinese in kindergarten and he used to play flute during his elementary school years. In the present day he is a nervous scientist who wears a paper bag over his head. He is also the one who creates all of the gadgets and machines Black Hat tries to sell. No one has seen his face except for, according to someone working on the show, Black Hat himself.


Dr. Flug is depicted as a tall, lanky male with white skin around his neck. He is often seen wearing a white lab coat, a blue t-shirt with an airplane on it, light blue trousers, red sneakers, yellow gloves, and goggles. He also has a paper bag over his head. His legs are unusually long compared to his body.


Dr. Flug appears to be a cowardly man, even though he is not an actual wimp. He is very intelligent and inventive and seems to like to 5.0.5., as he considers himself a father figure to the bear. In contrast, he and Demencia are often seen bickering, which shows a mutual dislike on their part.

In his Orientation Videos for Villains series it is shown that he may have no problem with torture and threats targeted at children. He also appears to have somewhat of an ego when it comes to his intelligence. In addition he is constantly nervous and wears a paper bag over his head at all times for some reason.

There is also an indication that he is a hypocrite, as in the inspection video about Mojo Jojo, he talked to 5.0.5. in a way parents talk to their small children, after he criticized Jojo for showing affection of his villainy.

He also has a deep disliking for superheroes. He experimented on ones he captured, briefly forgot about loving Miss Heed when he learned she was a superhero, and became enraged after learning Mojo Jojo created the powerpuff girls. The one superhero he hates most of all is Goldheart, to the point the one time he actually dreams, it's of murdering Goldheart. Their rivalry will most likely develop more in season 2, as Flug make it clear he intended on stopping Goldheart's ideology of a world without villains, and most likely seeks to kill him afterward.


  • Genius-level intellect: Flug is easily the most intelligent member of the team, having created most, if not all of the gadgets and machines Black Hat is trying to sell. Given their technological innovation and complexity, creating them would clearly require extensive scientific knowledge on Flug's part.
  • Driving/Piloting: Alan Ituriel has stated that Flug has both a driver's and a pilot's license.





  • The word "flugslys" means "aviation accident" or "plane crash" in Icelandic, ironically enough, the show's creator Alan Ituriel has said that Dr. Flug has both a driver's and pilot's license.
    • This may be related to Dr. Flug's t-shirt, and the airplane stuck on Black Hat's manor.
  • According to a tweet by Alan Ituriel, the reason behind Dr. Flug wearing a bag over his head will be revealed once the mini-series becomes a show.
  • Flug's favorite foods is pancakes, pasta, waffles and salad.
  • Flug used to play the flute in elementary school.
  • Flug learned Chinese in kindergarten.
  • As a child, Flug used to play video games, though no longer has the time to do so as an adult.
  • Dr. Flug is 28 years old, and will be 29 years old as of his birthday on August 23, 2022.
    • Given that the series is set in 2019, Flug's birth year is 1993.
  • Flug's birthday is on August 23.
    • Flug's zodiac sign is Virgo.
  • Flug has a brother, however, it has not been specified whether he is his older brother or his younger brother.
  • Flug dislikes wearing clothes that show his skin, such as shorts but he would wear shorts if he has to.
  • He loosely resembles Bucky McBadbat, a character from the animated television series The Fairly OddParents as both of them wear bags over their heads.
    • As well, he loosely resembles Faust from the Guilty Gear series as they wear bags over their heads and are doctors.
  • While he abuses him, Black Hat seems to hate Flug the least, as evident in a webcomic as well as having him featured in every video.
  • In "The Lost Cases of Elmore", it was revealed that Flug has a collection of real life planes which he has shrunk down and stored like snow globes. Unfortunately, though, he doesn’t let the people out of the planes.
    • The episode also showed that he knew personally Gumball's mother, Nicole. They seem to have had a bad relationship with each other.
  • It has been confirmed that Dr. Flug has committed 82,602 crimes. Those including of; falsification and theft of identity, as well as stealing aforementioned planes.
  • As in the TV series, Flug is more of the protagonist than Black Hat is, due to him appearing more times.
  • If the show was done in a more traditional format (with heroes being the protagonist and villains being the antagonist), Flug would actually serve as the main antagonist of Villainous since he interacts with the heroes more and is arguably more sophisticated than Black Hat.
  • Though his face is never revealed, a common theme for fans is for him to be Caucasian with messy brown hair.
  • Flug is similar to Megamind in the beginning of the movie, Megamind. He even has a powerful Superman-type superhero nemesis.
    • The difference being that Megamind felt remorse for his actions, redeemed himself, and became friends with his enemy. Flug on the other hand, truly does fancy himself as a villain and takes joy in it.


           Villainous logo.png Villains

Black Hat Organization
Black Hat | Dr. Flug Slys | Demencia

Yukito Pappeto | Hatbots | Black Hat's Clone | Earl | Monstrous Black Hat

Penumbra | Haunted Orphanage Van Deer (Emilia & Ghost Children) | Lady Bonnivet | Dark Phantom | Metauro | Mawrasite | Ghoul | Dr. Valeria Rapture | Chimera | Miss Valdoom | V.I.R.U.S. | Aldo Maldonado | Wobolick | Illuminarrow

Other Villains
Black Hot Organization
Black Hot | Dr. Flex | Dolencia | 6.0.6.

Criminals and Monsters
Miss Heed | Heart-Cam | Miss Heed's Followers | Coyote | Pirate | Loss Tornado | Mascara Macabra | Flower of Pure Foulness | The Witch | Subject 141 | Roxette

Father | The Delightful Children From Down The Lane | Hunson Abadeer | Earl of Lemongrab | Lord Boxman | Rob | Aku | Vilgax | Anti-Pops | HIM | Mojo Jojo | Grandfather | Peridot | Jasper | Perfectionist | Strike | Cacao | Red Guy | Cosma | Grim | Nergal | Bag-Headed Cashier | Hector Con Carne | General Reginald Skarr | Major Doctor Ghastly | Eris | Other Cartoon Network Villains

           Victor and Valentino logo.png Villains

Tez | Tez’s Master | (The Jaguar Patrol) | Charlene | Maria Teresa | Black Hat | Pineapple | Dr. Flug Slys | Alex | Botero | CaCao | Camazotz Bats | Chip | Clutter-Taur | Demencia | Dolores Del Rey | El Artrópodo | El Azteca | El Colorado | El Cosmos | El General | El Sapo | El Silbón | Farmer | Garbage Man | HueHue | Hun | Ismel | Jaime | Juan | Javier | Larry Ladron | Matty | Matty's brother | Matty's father | Matty's grandmother | Meat Frog | Meat Monsters | Mic | Mictlantecuhtli | Miguel | Paco | Queenie | Rick and Richard | Shop Clerk | Stinky | Tito, the Monkey | Toni | Tula | Victor's mustache | Wall Art Monsters | Zoe