Gabriel Agreste

Hawk Moth ("Le Papillon" in the French version, which translates to "The Butterfly") is the main antagonist of Miraculous: Tales of Ladybug & Cat Noir. He wants Ladybug and Cat Noir's Miraculouses and powers for himself, and he creates and controls the akumas, evil creatures who transform normal people into supervillains.

Appearance
Hawk Moth is tall with light blue eyes.

He wears a dark purple dress shirt with a black vest, a light pink butterfly-shaped bow with a purple button in the center, and black dress pants. Over the majority of his face, he wears a silver mask. Whenever he is controlling someone with an akuma, a bright pink butterfly-shaped outline appears above his face and around his eyes. He also has a dark indigo cane with a round stone with black lines within a cylinder on top.

Personality
Hawk Moth is cold, cunning, and determined. His goal is to claim the Miraculouses to achieve a godlike power he needs to realize his dearest wish, not caring if he causes people harm in the process. His akumatized villains are his most powerful known weapon, and he chooses his victims carefully and cleverly, giving them ideas if they're struggling to think up ones. He is a great deceiver, persuading people that he cares about their problems and gives them powers to help them solve them, when in fact, he does it because he wants them to take the Miraculouses for him. If things aren't going his way, he easily loses his patience, threatening harm to Ladybug, Cat Noir, and even to the villains he creates. After a villain's defeat, Hawk Moth vows revenge and, while stopping for a while afterwards, doesn't wait too long to try again with his akumas.

Ladybug
Hawk Moth wants nothing more than to defeat Ladybug, take her Miraculous, and make her suffer once he wins. While he despises both her and Cat Noir and wants both of their Miraculous, he seems to blame her more for their successes and feel more aggression towards her, probably because she is the one who captures the akumas he creates and turns them back to normal.

Cat Noir
Like with Ladybug, if to a slightly lesser extent, Hawk Moth despises him and intends to take his Miraculous.

Akumatized villains
The only purpose Hawk Moth creates akumatized villains is because he needs them to retrieve Ladybug and Cat Noir's Miraculouses from them. He pretends to be a caring friend, promising to assist them with their dark desires by giving them powers, just as long as they return the favor with the Miraculouses. He often stays involved with what they're doing, and he'll give advice or plans to them in some situations.

However, if an akumatized villain doesn't follow through with obtaining the Miraculouses, Hawk Moth gets furious. He becomes frustrated when the Bubbler kicks a bubble that holds Ladybug and Cat Noir into the sky without getting their Miraculouses, and when the Evillustrator avoids his responsibility to prepare for a date with Marinette, he temporarily controls his body to urge him to hurry up. {{HideSpoiler| With Manon/the Puppeteer, however, he shows some more kindness, even sometimes praising her.

Nooroo
Hawk Moth coldly bosses Nooroo around, disregarding Nooroo's pleas for him not to use the Butterfly Miraculous for evil purposes and demanding him to obey him.}}

Abilities
Hawk Moth can energize butterflies with dark energy, which transforms them into akumas. He sends them out to possess the object of a vulnerable person, and then after they agree to serve him, he transforms them into supervillains, corrupting their personalities and granting them a wide variety of superpowers and abilities. To telepathically communicate with his creations, a pink butterfly-shaped frame of light appears in front of his and the villain's faces. He is able to feel negative emotions like an empath, and he can precisely pinpoint the person's name and the reason why they're upset.

These powers do have their limitations, however. He is only able to create one villain at a time over the course of an indeterminate amount of time. He needs to convince his victims to accept the powers that he grants, and the akumatized supervillains that he creates—while corrupted—do still have a will of their own and can either disobey or carry out his orders incompetently. For a brief amount of time however, he can control the villain's body, preventing them from doing anything.

It is currently unknown if he has any physical capabilities on his own.

Trivia

 * Hawk Moth is also called Butterfly in other sources.
 * In the Castilian Spanish version, Hawk Moth's name is "Lepidóptero", which comes from the scientific order called Lepidoptera; that contains all butterflies and moths.
 * Hawk Moth's appearance is much different than his appearance in the Ladybug PV. In the PV, he doesn't wear a mask, has white hair and silver eyes, and wears a white dress suit with a pale tan vest and bow.
 * His real identity is currently unknown.
 * After sending an akuma, he rotates his staff with his left hand, so he's possibly left-handed.
 * Both the butterfly and the moth symbolize change or personal evolution. This is likely in connection with his ability to corrupt and transform others into his henchmen.
 * The design of Hawk Moth's mask is a reference to the supervillain Fantômas from the 1964 French film with the same name.
 * It's unknown what Hawk Moth's intentions are for getting Ladybug and Cat Noir's Miraculouses, other than for more power. However in Rogercop he reveals that he is planning to rule the world.
 * Wilfried Pain, when asked on Twitter if Hawk Moth is a metaphor for human ambivalence, responded, "Yes, you can say that. But his true nature and purpose will change your point of view."
 * Hawk Moth usually reveals his name to his victims when he corrupts them. However, he never gives his name to the Evillustrator or Darkblade.
 * Few of Hawk Moth's victims refer to him by name.
 * Hawk Moth is the tallest character in the series.
 * Hawk Moth and Gabriel Agreste share a voice actor in many versions of the show.
 * Versions in which they share a voice actor include the English, French, Korean, Castillian Spanish and Latin American Spanish versions of the show.
 * However, this fact is not consistent across all language dubs. Versions in which they have different voice actors include the Brazilian Portuguese, Polish, Hebrew and Hungarian versions of the show.

Hawk Moth Бражник pt-br:Hawk Moth Władca Ciem Papillon