Loki’s brother in the Marvel Comics universe is Thor. Loki and Thor are characters from Norse mythology who have been adapted into comic book characters by Marvel Comics. Loki is the god of mischief and Thor is the god of thunder, and they are often portrayed as siblings in various Marvel Comics storylines.

In the Marvel Comics, Loki and Thor are depicted as brothers, with Loki being the younger brother of Thor. They share a complicated relationship, filled with sibling rivalry, conflict, and moments of camaraderie. Loki is known for his cunning and deceitful nature, often scheming against Thor and other Asgardians, while Thor is known for his bravery, strength, and sense of duty as the protector of Asgard.
Loki is portrayed as a mischievous and often malevolent character, constantly plotting against Thor and attempting to seize power for himself. He is known for his shape-shifting abilities, magical powers, and his silver tongue, which he uses to manipulate others. Loki’s actions often lead to conflicts and challenges for Thor, and he is portrayed as one of Thor’s greatest adversaries.
On the other hand, Thor is depicted as a noble and heroic character, wielding the enchanted hammer Mjolnir, which grants him the power of the god of thunder. Thor is often portrayed as the epitome of strength and honor, and he is known for his battles against various foes, both on Earth and in other realms. He is also a founding member of the Avengers, a team of superheroes in the Marvel Comics.
Despite their differences, Loki and Thor share a complex bond as brothers. There are moments in the Marvel Comics where Loki and Thor have shown acts of brotherly love, with Loki sometimes helping Thor and Asgard in their battles against common enemies. However, their relationship is often strained due to Loki’s deceitful nature and his constant attempts to betray Thor and gain power for himself.
One of the most significant storylines that highlight the bond between Loki and Thor is the “Siege” storyline, where Loki is shown sacrificing himself to save Thor and Asgard from a powerful enemy. This selfless act of sacrifice by Loki portrays a deep emotional connection between the two characters, showing that despite their differences, there is still a sense of brotherhood and familial bond between them.
In addition to their complicated relationship as siblings, Loki and Thor also share a common heritage as gods from Asgard. Asgard is a fictional realm in the Marvel Comics, and Loki and Thor are depicted as members of the Asgardian pantheon of gods, with their father Odin being the king of Asgard. Their shared heritage as gods and their connection to Asgard further adds depth to their relationship and their interactions in the Marvel Comics.
It’s important to note that the portrayal of Loki and Thor’s relationship may vary depending on the storyline or adaptation. In various Marvel Comics storylines, Loki and Thor’s relationship has been depicted in different ways, ranging from bitter enemies to reluctant allies to conflicted brothers. Different writers and artists may interpret and portray their relationship differently, adding complexity and depth to their characters and their interactions.
In conclusion, in the Marvel Comics universe, Loki is portrayed as the younger brother of Thor, the god of thunder. They share a complicated relationship as siblings, with moments of sibling rivalry, conflict, and camaraderie. Loki is often depicted as a mischievous and deceitful character, while Thor is portrayed as a noble and heroic character. Despite their differences, they share a bond as brothers, with moments of brotherly love and selfless acts of sacrifice. Their relationship is further enhanced by their common heritage as gods from Asgard. However, it’s important to note that their relationship may vary depending on the storyline or adaptation, adding complexity and depth to their characters in the Marvel Comics.