Exetior

Exetior is the main Antagonist of the Sonic.exe Nightmare series. He is voiced by JaizKoys. Exetior was born into an Angel of family. He was Blessed by The Great Chaos the Supreme Energy of Nu, which made him much stronger than most of the other Heaven residents. This fact quickly attracted the attention of All-Father, and Exetior was taken away from his family for observation. After a while, Exetior decides to hide on the most precious planet for him: Mobius, putting the Highests on the wrong track and taking the form of Sonic the Hedgehog to disguise his aura. Exetior's Personality, his own series, comes across as Ruthless & Bloodthirsty Powerful. He also has very way with a word from Exetior prefers not get a violent when it's Avoidable. Exetior's Another Personality is Merciless, Malevolent and Exceedingly murderous Demon. He is over 10,000 years old. He is genderless, but prefers masculine pronouns. He has a weakness for quiet and obedient children. While not needing food, he prefers salty and sweet foods (likely due to inhabiting Sonic, who prefers chili dogs) His favorite food is fried fish. He is naïve around his circle of friends. He does not like to be referred to as "Lord". This is likely meant to be a reference to JoeDoughBoi's Lord X. In any form he takes, he smells like burning wood or charcoal. He is also as hot as lava. Sonic.exe's original author, JC-the-Hyena, has gone on record to voice his disapproval of Exetior, claiming that it goes against his original intention of what he wanted the character to be. etior is the Chosen One of Chaos[1]. He was originally an Elite Highest, but was transformed into an Arch-Demon due to his demonization awakening his gift from the Great Chaos. Because of his background and how others in his homeworld treated him, he is very prone to losing his composure and having outbursts of anger when agitated. Among Demons and mortals, he is seen by others as very calculating, charismatic and persuasive. His ferocious personality and reputation is well known among Demons across the universe, as well as ones sealed away such as Xato.

Exetior possesses a degree of restraint compared to other EXEs due to having a code of honor. While in earlier games he was far more malicious and bloodthirsty, this changes after Sally.exe: Finished Nightmare, where he begins to learn what it truly means to save Mobius. Both Sonic and his victims are allowed to keep their individuality when demonized, with his servants each retaining the personality their former selves. When Exetior was born to the all-powerful Highest race, he was blessed by the supreme being Chaos, which immediately created suspicion and concern among his entire race. Chaos' "gifts" would often lead to terrible events that caused the Highest to lose their iron grip on existence. This caused the other Highest to hate Exetior and treat him like a pest they should get rid of, but rather than choose to side with the rest of the public, the Highest leader All-Father saw potential in the young god and decided to make him a key Highest involved in the creation of new planets, stars and dimensions. Eventually, Exetior with the help of some other Highests would create a planet known as Mobius. It immediately caught Exetior's eye as he would begin to develop it even more.

Despite his newly found position among his society, the other Highest were still too bigoted from their fear of Chaos and never gave him the proper love he desired. Exetior took offense to this and decided to raise an army to overthrow their society and it's control on the universe as a whole, using his charisma and overwhelmingly powerful aura under the guise of an Arch-Demon to garner new followers. These new allies included the bloodthirsty Sharpness Demon Sark, the reclusive Wave Demon Negagen, and the mad scientist Rupter Demon Pervision. Unfortunately as the war between the Demons and Highests emerged, Exetior's side was crushed by the might of the Highest, being sent to rot in the Phantom Prison.

While he was locked up and stripped of his Highest authority, Exetior's conscious began to flood with feelings of intense rage. As he kept having violent anger outbursts, his power caused his Highest form to deteriorate and transform into something more sinister, completely becoming an Arch-Demon in the process. The intense amount of power his transformation exerted allowed him to break out of the Phantom Prison, to which he escaped and also freed other imprisoned demons that were crucial in his army.

As he hid across many different planets, dimensions and other places, the Highest would always manage to find him and erase his progress made. Eventually he would stumble across Mobius again, hiding within Sonic's body to mask his aura from them. Exetior was unable to completely take over Sonic's body because it was protected by a chained demon named Creep. He told Exetior that Sonic's strong will made it difficult for him to be possessed. However, if sonics friends and three main parts of his determination were destroyed (Tails, Knuckles and Eggman), it could potentially leave him powerless and possessable. Exetior agreed to this choice and temporarily possessed Sonic's body.