Thor, the son of Odin and the Norse God of Thunder, was featured as an assist character inMarvel vs. Capcom: Clash of Super Heroes, and makes his debut as a playable fighter in Marvel vs. Capcom 3: Fate of Two Worlds.
One of the Norse gods, Thor Odinson was the son of Odin. He grew up an adventurous, but sometimes self-centered, youth in Asgard, alongside his adopted brother Loki. Loki was the son of a half-giant, but was born normal-sized, so Odin chose to adopt him. Loki had no interest in sports or adventures as Thor did, preferring a bit of mischief. Due to his performance in physical activities, Thor was the favorite of Odin, much to Loki's jealousy. As an adult, Thor was given the mystical hammer Mjolnir, that only the worthy can lift, as a present from his father. With Mjolnir in hand, Thor became the God of Thunder. Still a bit brash, Thor restarted a war with the Frost Giants, who were at peace with the Asgardians since a treaty was signed. Odin felt that Thor needed to learn humility, kindness, and responsibility, so he banished him from Asgard to live with the humans. He was reborn as Doctor Donald Blake, until he found Mjolnir once again, and regained his memories of him as a god. Thor has gone on to learn the things that Odin had wished, and even became attached to the Earth, protecting it from threats such as Loki, who had become the God of Mischief. Thor even founded the Avengers alongside Iron Man, the Hulk, the Wasp, and Ant Man. He has also become good friends with Captain America. Thor has since stopped having a human host.
However, Ragnarok, or the Asgardian end of the world, struck shortly after Odin's death. Many Asgardian were perishing, and then Thor realized what must be done. Ragnarok is a never ending cycle, so all who died in it would eventually be reborn. Thor helped to speed up Ragnarok, and he stayed dead for a few years. Eventually, all who had died during Ragnarok came back, including Thor in a new costume. Thor's recently discovered brother Balder currently acts as king of Asgard, which was recently attacked by Norman Osborn's evil Avengers.