Gabriel

Gabriel, also known as Loki or The Trickster, was the fourth and youngest of the four archangels created by God. Despite the fact that he is the youngest of the archangels, he is still very powerful. Gabriel was very compassionate towards his family.

Personality
Acting as a demi-god, Gabriel behaves in a mischievous manner, enjoys toying with his victims, humans he believes should be brought down a notch. He embraces a hedonistic lifestyle, including the "sweet tooth" for which that type of demi-deity was known. Even after revealing himself to be an Archangel, he still used misdirection to achieve his goals and to protect himself. He was often sarcastic. Gabriel's manner was the most human of any of the angels so far, perhaps because of his long sojourn on Earth. He holds humans in high regard, despite their many faults, something the other Archangels did not, not even Michael.

Nothing is known of his vessel, though the Pagan deities' familiarity with it indicates Gabriel had possessed him for a long time, possibly centuries. During his masquerade, Gabriel formed a relationship with Tsubaki and continued to have a soft spot for her as he risked and nearly lost his life for her.

Despite how ever long Gabriel had been running and hiding from his father and siblings, he still confesses concern for lesser angels, and still has love for his archangel brethren, including Lucifer, as he mentioned that he still loved both them and God.

However, because he couldn't bear with the fighting going on in Heaven between Michael and Lucifer, and because it had happened again during the Apocalypse, Gabriel just wanted the fighting to stop. Although he didn't care if either Heaven or the Demon Realm would win, he didn't want any part in the fight and all he wanted was for it to be over.

Eight years after his supposed death and having spent an unknown time as the prisoner of the Prince of Hell Asmodeus, Gabriel's personality has greatly changed. Gabriel is shown to be greatly fearful and is terrified by any sign of aggression around him, cringing away in fear any time someone comes close to him. Notably, Gabriel cringed in fear when Tsubaki mentioned needing his grace, something that Asmodeus had been stealing from him in order to power up.

After Tsubaki begged him, Gabriel spoke and his old personality was revealed to still be intact. While he still got scared of Asmodeus' voice, when he saw what the latter was doing to his friend and brother he overcame it and stood his ground at Asmodeus' taunts before he killed him on the spot after insulting him. Afterwards, he continued to show reluctance in getting involved in the situation of Lucifer and an alternate Michael.

Gabriel completely showed that he had overcame any cowardice he had, as he bravely insulted Lucifer for his actions which led to God locking him in the cage, despite knowing that even when they were both weakened, Lucifer still surpassed him.

Powers and Abilities
Despite being the youngest Archangel created by God, Gabriel was one of the oldest and most powerful beings in existence being endowed with considerable power. He originally appeared to Shiro as a Trickster. Before she knew he was an Archangel, Tsubaki called him "one of the most powerful creatures I've ever met." Both Shiro and Tsubaki have said that Gabriel was much more powerful than a Trickster, too powerful to be one in fact. Due to his diminished grace, Gabriel was weaker, though still very powerful. Even in his weakened state, he was powerful enough to kill a Prince of Hell effortlessly. However, doing this in his weakened state caused Gabriel to drain his Grace.
 * Lower Tier Nigh-Omnipotence - Being the youngest archangel, Gabriel possessed an unbelievable amount of power, enough that he could create entire pocket universes with their own timeline and add in timelines to the universe with just a thought. However, he is significantly weaker than Lucifer and Michael.

Quotes

 * "Shut your cakehole. You don't know anything about my family. I love my father, my brothers. Love them. But watching them turn on each other? Tear at each other's throats? I couldn't bear it! Okay? So I left. And now it's happening all over again."

Trivia

 * Despite his mischievous behaviors and deeds, he is the only archangel to show that he cares for humanity as he is willing to go against Michael and Lucifer.
 * His reason for leaving Heaven was similar to his father, as both were disgusted by the actions of their family and left while assuming new identities.
 * Gabriel is the only archangel to ever refer to himself as such.
 * According to Islamic Quran, Gabriel is the archangel that gave the word of God to the alleged prophet Mohammed. In the Bible, he is the archangel that acts as a messenger to Daniel, the Virgin Mary and the parents of John the Baptist.