- Adaptation Displacement: Villainous originally came from a series of web shorts made in 2012 for Ituriel's website That Place To Hang Out. It doesn't help that almost all of the artwork and shorts were removed off of the website, and the original shorts have been privatized on its main YouTube page, likely for legal reasons—as CN owns the rights of the show now.
- Awesome Ego: Black Hat is narcissistic and thinks that he is the greatest villain ever. It's hard to blame him. His muscular version is also an example, thanks to his hammy personality.
- Awesome Music: The music from the teaser trailer gives us a catchy theme set to a dark jazz number that sings about Black Hat and how evil and frightening he is:"Gather around my children,
For I have a tale to tell
Have you heard the lore
Of the most peculiar man of all
He's tall and wears a black hat
And within the dark he strikes, Oh my!
No hero dares to stop him
They run in terror and fright
If you've been having trouble with any hero or are just a parent with a terrible child,
call 1-800-BLACK HAT
But you've been warned
Beware of-" [record scratch]
- Crazy Awesome: Demencia is an absolutely insane, has no attention span at all to speak of, and completely uncaring for Flug's plans and strategies. And yet, Demencia is still capable of going toe-to-toe with superheroes much stronger than her.
- Crossover Ship:
- Cult Classic: For a series of minute long shorts that unceremoniously debuted one afternoon, the first phase of Villainous content quickly gained the show popularity that rivaled much of Cartoon Network's on-air programming, both in Latin America and the United States.
- Darkness-Induced Audience Apathy: The series has seen some criticism due to the focus characters being unrepentant villains, and the ARG and worldbuilding imply that the world is in a pretty bad state. Adding to that is how Black Hat is portrayed as an invincible evil who is implied to be the Big Bad of the entire CN universe. The series' small cameos/Easter eggs implying the defeat of several well-known CN heroes has also earned the ire of fans of those shows who see their villains being downgraded to pander to Black Hat's status of a greater all powerful villain who can't be stopped. Black Hat fully knowing this and being smug about it (laughing and not remembering those heroes) also doesn't help.
- Ensemble Dark Horse:
- The muscular Black Hat is probably the most popular out of Black Hat's clones, because of his voice and personality.
- Another alternate version of Black Hat became popular very quickly: The heroic Black Hat, who appeared for two seconds as a Fandom Nod to a popular Alternate Universe Fic note . Some fans like to ship him with Black Hat, despite him only existing in Demencia's imagination.
- Penumbra has gained a considerable fandom from her one appearance in the pilot, mostly due to her being a Perky Goth and actually being quite nice.
- In regards to villains introduced in the shorts, Metauro and Mawrasite have gotten the most play in the fandom. The former for his tragic backstory and the latter for her interesting design and character.
- Epileptic Trees: There is a popular fan theory that Demencia used to be a normal girl named Amelia ("Amy" for short) who got kidnapped and mutated by Black Hat and suffers from Stockholm Syndrome. The theory stems from some notes being shown in the background sometimes, some of which are signed as "Test Subject: Amelia" or "Love me BH, <3 Amy".
- Estrogen Brigade: Dr. Flug and Black Hat are insanely popular among gals, if social media (and Demencia, in the case of Black Hat) is anything to go by. ESPECIALLY the Muscular Black Hat.
- Evil Is Cool: Black Hat, hardcore. Demencia as well and Flug when he shows his true colors.
- Evil Is Sexy:
- The charismatic and sharply dressed Black Hat, at least from Demencia's perspective if not several of the fans. The one time Black Hat is shown as "good" (via her impression of him when under the effects of the Dapura Repulsa flower) she reacts in utter disgust.
- Demencia and Penumbra could also both qualify for fanboys.
- Fanfic Fuel: The second batch of shorts shows Black Hat having ties to an entire multiverse of Cartoon Network villains, many of whom he has personally worked with. That's enough to keep fics going for ages! His report on the The Delightful Children From Down the Lane, especially so, as it ends with the Kids Next Door being made aware of Black Hat's existence.
- Fanon: Most fans depict Black Hat as being some sort of demon or a Eldritch Abomination. The show... doesn't do much to discredit that idea.
- Friendly Fandoms: The fandom seems to be quite an overlap with the Wander over Yonder fandom, with a lot of crossover art being drawn (a lot of which happens to include a certain EVIL SANDWICH).
- Gotta Ship 'Em All: Black Hat/Dr. Flug and Black Hat/Demencia are both incredibly popular ships, but fans have also been known to shake things up by pairing Dr. Flug and Demencia or just shipping all three.
- Idiosyncratic Ship Naming:
- Jerkass Woobie:
- Dr. Flug, who takes the majority of the abuse in the show and generally gets no respect from the nefarious Black Hat. Though it's downplayed somewhat when one later sees that Flug isn't only some unfortunate Butt-Monkey, but also a genuine supervillain and a willing accomplice in Black Hat's evil schemes.
- Penumbra from the pilot. Sure, she's plotting to block out the sun, but she suffers from a skin condition that makes exposure to sunlight lethal, and the "superhero" she fights with regularly is a humongous douchebag. It's easy to sympathize with her because of this, especially by the end of the pilot.
- Just Here for Godzilla: Quite a few people watch the show just because Markiplier voices 5.0.5. and the Muscular Black Hat.
- Memetic Mutation:
- Once the CN shorts hit the web, the animation community immediately gathered together to get in on the action.
- The record player in Black Hat's office.note
- Older Than They Think: Despite being marketed as such, this isn't the first animated show to come from CN Mexico. Rather, it was actually Santos Contra Los Clones, which followed a similar format as being a miniseries with minute-long installments.
- Portmanteau Couple Name: Sunbra for Sunblast/Penumbra.
- Self-Fanservice: A lot of fan-artists like portraying Dr. Flug as Beautiful All Along underneath his bag.
- Testosterone Brigade: On the opposite end from the Estrogen Brigade, Demencia seems dementedly popular among guys.
- What an Idiot!: In one short, Black Hat and Flug demonstrate a security system that is meant to garuntee keeping people out with its multiple weapons.
You'd Expect: Flug would make sure to implement some sort of off function so that he and Black Hat can safely enter and exit the house.
Instead: He never considers an off function and is forced to endure the pain of the system after turning it on while he and Black Hat are both outside.
- What Do You Mean, It's for Kids?: It's a Cartoon Network show about a supervillain team, loaded with tons of Black Comedy and Comedic Sociopathy.
- The Woobie: 5.0.5. He's one of the sweetest creatures you'll ever meet... unfortunately, he lives with the most evil something in the world, who regularly abuses and belittles him because of what he is. As icing on the cake, in the "Repulsive Flower" short, he's insulted by the person that (as evidenced in other videos) he sees as his father. The bear really needs a hug.
YMMV / Villainous