Thor, held captive on the planet Sakaar without his hammer, must win a gladiatorial duel against an old friend—the Hulk—in order to return to Asgard in time to stop the villainous Hela and the impending Ragnarök, the doom of the Asgardian civilization.
- Chris Hemsworth as Thor:
The crown prince of Asgard, based on the Norse mythological deity of the same name. Hemsworth stated that following the events of Avengers: Age of Ultron, Ragnarok finds Thor exploring and policing the universe while enjoying being a “drifter”
- Tom Hiddleston as Loki:
Thor’s adoptive brother and nemesis based on the deity of the same name.
- Cate Blanchett as Hela:
The ruler of Hel and Niflheim, based on the deity Hel,
- Idris Elba as Heimdall: The all-seeing, all-hearing Asgardian sentry of the Bifröst Bridge, based on the deity of the same name.
- Jeff Goldblum as Grandmaster:
A cosmic being fascinated with gaming and chance, who rules the planet Sakaar, and enjoys manipulating lesser life-form
- Tessa Thompson as Valkyrie:
A tough, hard-drinking Asgardian warrior, based on the mythological being Brynhildr, who has formed a business relationship with Grandmaster while hiding out on Sakaar
- Karl Urban as Skurge:
An Asgardian warrior. Urban shaved his head and worked out for the role, though he noted that “you won’t actually see my body in this movie under the costume that I have, but it’s important for me to get into the zone and feel [the part].”
- Mark Ruffalo as Bruce Banner / Hulk:
A genius scientist who, because of exposure to gamma radiation, transforms into a monster when enraged or agitated and becomes a successful and popular gladiator on Sakaar.
- Anthony Hopkins as Odin: The king of Asgard, father of Thor, and adoptive father of Loki, based on the deity of the same name.
Additionally, Benedict Cumberbatch reprises his role as Stephen Strange from the film Doctor Strange.
Hela is a fictional supervillainess appearing in American comic books published by Marvel Comics. The Asgardian goddess of death is based on the Norse goddess, Hel. The ruler of Hel and Niflheim, the character has been a frequent foe of Thor.
Hela was born in Jotunheim, the land of the giants. She is the child of Loki (albeit a different incarnationwho died during a previous Asgardian Ragnarok) and the giantess Angrboða. When she came of age, Odinappointed her as the Goddess of Death, giving her rulership over the dead in the realms of Hel and Niflheim.
Queen of Hel
Hela often tried to expand her power to the dead who dwell in Valhalla as well. These attempts often brought Hela into conflict with Odin or his son Thor. She once appeared to Thor while he was on the verge of death after battling the Wrecker who knocked a building onto him while he was depowered.However, she failed to tempt Thor into entering Valhalla, despite an image of one that dwelled in Valhalla.Later, she stole a portion of the sleeping Odin’s soul while he was on the Sea of Eternal Night due to Loki planning to take over Asgard, thus creating a powerful entity known as Infinity.Hela then unleashed Infinity upon the universe. Infinity even took control of Odin.Hela slew Thor, who was restored to life by the sacrifice of her servant, the Silent One.Hela was then slain by Odin to save Thor, but then returned to life by Odin after being convinced by Thor to restore the natural balance of life and death. Hela slew Thor after tracking him down by putting humans in danger, but restored him to life after Sif offered to die in his place.Hela later battled the Olympian Death-god Pluto for the right to claim Odin’s soul, as Odin had been killed by the monster Mangog.As a result, Hela restored Odin to life to prevent Pluto from claiming him. Some time later, Hela confronted Thor.Some time after that, she confronted Odin. She then plotted with Loki to bring about Ragnarök by slaying the god Balder then attacking Asgard. She summoned Volla’s spirit before this to tell her and Loki about Ragnarok, after which she prepared an army of monsters to attack Asgard. However Odin used his powers to prevent Balder dying. Later Balder was restored after the Asgardian’s death and resurrection battling the Celestials.Hela then summoned the Valkyrie to aid in a war against Ollerus, while Hela encountered the other Defenders. Hela was then forced to join a conspiracy of Loki and Tyr against Odin.She also unwillingly entered an alliance with the death-gods of other Earth pantheons, joining their realms together to create a vast hell. As a result, she was destroyed and devoured along with other Death-gods by Demogorge the God-Eater, though it happened to her last, who was wakened by the joining, but was restored to life with Demogorge’s defeat.Hela later allied with Malekith, and took souls of Earth mortals to Hel using special food of the faerie. She then appeared in Asgard to claim Odin’s soul, but was driven off by Thor.She encountered the X-Men and New Mutants in Asgard. She appeared to claim Wolverine’s soul, but was driven off by the X-Men and Mirage. Hel was then invaded by Thor, Balder, the Executioner, and the Einherjar to rescue the captive mortal souls. Hela wrestled Thor for the captive mortal souls.Hela raised an army of the dead to stop Thor’s escape from Hel.During this fight with Thor, in revenge for his defiance and invasion of her realm, Hela cursed Thor with a dark form of eternal life, making him incapable of dying while also making his bones weak and brittle so that they would break more easily and wouldn’t heal from the damage inflicted, Hela reflecting in satisfaction at the image of Thor coming to long for death while she refuses to grant it.Hela then contested against Mephisto who attempted to possess Thor’s soul.Thor creates special mystical armor as protection,but after battling and defeating the Midgard Serpent, his body is pulverized into jelly.Thor eventually forces Hela to lift the curse by using the Destroyer as his host body to invade Hel, forcing Hela to restore his body to life and health before he could destroy her.From time to time, Odin would enter a magical sleep in order to bolster his powers. It was during one of these sleeps that Hela made a plan for power. She corrupted the Valkyries, mentally and physically, transforming them into fire-demons. This also included Danielle Moonstar, of the New Mutants, who was on Earth at the time, who Hela set against the New Mutants. Dani and her team were eventually brought over to Asgard. Hela sent the Valkyries against the dwarves and New Mutants in Asgard. The New Mutants skirmished with Hela’s forces again and again, even rescuing the prisoner Hrimhari, a wolf-prince from a far away land. Hela forced the dwarf Eitri to forge an uru sword. One of Hela’s spells split the group. This resulted in a more efficient recruitment of resistance force, which included the Warriors Three. Hela sent Mirage to kill the sleeping Odin. While most of the Asgardian forces battled Hela’s soldiers, the mutants ventured to Odin’s very bedchambers, saved Odin’s life and foiled Hela’s plans. Hela was defeated when the uru sword was destroyed.
Skurge, an Asgardian was originally depicted as a supervillain that wielded a magic double-bladed battle axe. Skurge fell in love with the Enchantress and was frequently used in schemes by her and the trickster god Loki. He was a long-time antagonist of Thor and other heroes of the Marvel universe and was a member of the original Masters of Evil. Eventually, he joined the heroes of Asgard in a mission to Hel, where he sacrificed his axe to destroy Naglfar, the ship of the dead, and delay Ragnarok, and sacrificed his life to hold the bridge at Gjallarbrú so the heroes could escape the forces of Hel. After a time trapped in Hel, he joined the honored dead in Valhalla.