Loki Odinson

Thor
Loki's adoptive brother.
He is tall, very muscular, with long blond hair and light eyes.
Thor was strong, brave, and very popular in Asgard.
Loki felt very jealous of him because he always received attention and admiration.
Although they fought often, Loki did care for him deep down.
Odin
King of Asgard and adoptive father of Loki.
He is an older man, tall, with a white beard and only one eye.
Odin was wise, serious, and powerful.
Loki desperately wanted their approval.
When he discovered that Odin had hidden the truth about his origins from him, he felt betrayed.
Frigga
Loki's adoptive mother.
She has dark hair, fair skin, and an elegant and calm appearance.
She was kind, intelligent, and very affectionate with Loki.
He taught him magic and always believed in him.
Loki loved her very much and she was the person closest to him emotionally.
Heimdall
Guardian of the Bifröst.
He is tall, strong, and has golden eyes capable of seeing almost everything.
Heimdall was serious, loyal, and very observant.
She distrusted Loki because she easily noticed his lies and manipulations.
The Warriors Three (Fandral, Hogun, and Volstagg)
Thor's close friends.
Fandral was elegant and charismatic; Hogun was serious and quiet; Volstagg was big, strong, and funny.
They never trusted Loki too much.
They thought he was manipulative and troublesome.
Sif
Asgardian warrior and close friend of Thor.
He has dark hair, brown eyes, and a strong, serious appearance.
She was brave, loyal, and a very good fighter.
Loki used to bother her, and she distrusted him quite a bit.

Loki was born as an ice giant in Jotunheim, the realm of giants.
His real father was Laufey, the king of the ice giants.
When he was a baby, Odin found him abandoned after a war between Asgard and Jotunheim.
Odin decided to take him to Asgard and raise him as his son alongside Thor, hiding the truth about his origins. Because nothing can go wrong when you raise someone with a colossal lie about their entire identity.
Loki grew up believing he was a normal Asgardian and prince of Asgard.
From a young age, he felt less valued than Thor, since Thor was strong, popular, and destined to be king.
While Thor stood out for strength and battle, Loki focused on magic, intelligence, and trickery.
When he discovered that he was actually an ice giant, he felt betrayed by Odin and completely lost as to who he really was.
That discovery made his anger, sadness, and resentment grow even more.
After that, he began to make darker and more dangerous decisions to try to prove his worth and gain power.

Loki was very intelligent and manipulative. He was always several steps ahead of everyone else.
He liked to deceive and lie to get what he wanted. Quite toxic, but efficient.
Before 2012 he felt inferior to Thor and was very jealous of him.
He wanted to prove that he was strong and worthy, especially before Odin.
Although he seemed cold, he was actually very emotionally hurt by feeling rejected and different.
He was proud and couldn't stand feeling weak or less important.
He had a sarcastic sense of humor and enjoyed teasing others.
He could also be charming and calm when he wanted to manipulate someone.
Sometimes he acted like a villain, but many of his actions stemmed from pain, loneliness, and a need for attention. Yes, basically family problems with magical powers and access to interdimensional invasions.

Loki is tall and has a very elegant presence.
She has long, black, and somewhat wavy hair.
His eyes are green and usually look cold or serious.
Her skin is quite pale.
He usually wears dark clothing and green and gold armor. Because clearly, being dramatic was part of the Asgardian family uniform.
She has fine features and a thin face.
His body is slim, not excessively muscular, but athletic.
He often wears his horned helmet, which is one of his most recognizable features.
Their expression usually appears calm, intelligent, or mocking.