This is a list of characters from Disney's "Frozen" franchise, which consists of the animated films "Frozen" (2013) and "Frozen 2" (2019), several short films and specials, and other media appearances.
Introduced in "Frozen".
Trolls.
The Trolls are creatures that camouflage themselves in the form of rocks, residing in the Valley of the Living Rock. When Kristoff brings Anna to them, the Trolls sing "Fixer Upper" in order to get them together. They also appear in "LEGO Frozen Northern Lights", throwing a big party during Grand Pabbie's absence. The trolls also make a cameo appearance in the 2023 short film "Once Upon a Studio", appearing in the form of rocks and causing Aladdin to slide on them.
Grand Pabbie.
Grand Pabbie is the leader of the trolls. He has magical abilities, which is why King Agnarr went looking for him when Anna was little and was hit on the head by Elsa's powers, which Big Pabbie helped her with, but made Anna forget Elsa's ice powers. Years later, after Anna is struck again by Elsa's ice powers, this time in her heart, Grand Pabbie tells her that there is nothing she can do since only an act of true love would save her.
In "Frozen II", Grand Pabbie arrives with the other trolls in the town of Arendelle after suffering an earthquake, telling the protagonists that they will find the answers they are looking for to what happens in the Enchanted Forest, leaving him in the care of Arendelle during their absence.
In "LEGO Frozen Northern Lights", the protagonists visit the Valley of the Living Rock to question Grand Pabbie about the disappearance of Arendelle's northern lights, but the trolls tell them that Grand Pabbie headed off on the northern trail, so they start a mission to find him. When they do, Pabbie explains that every 500 years, he uses four crystals to refract the northern lights to reign over Arendelle, and they didn't appear on schedule because he only had one, and was waiting for Anna, Kristoff, and Elsa to bring him the other three crystals.
Grand Pabbie also has a cameo appearance in the 2023 short film "Once Upon a Studio", appearing in a line of Walt Disney Animation Studios characters going down the stairs to go outside the studio, and later being part of the group photo with the rest of the characters.
An alternate version of Grand Pabbie appears in the television series "Once Upon a Time" in the season 4 episodes "A Tale of Two Sisters", "Family Business", and "The Snow Queen", receiving visits from characters seeking advice.
Bulda.
Bulda is a female troll, and the adoptive mother of Kristoff and Sven, adopting them after meeting them when they were little. When Kristoff arrives in the Valley of the Living Rock accompanied by Anna, she tries to convince her that Kristoff would be a good suitor, and ends up singing "Fixer Upper" with the other trolls to get them together. Her husband, Cliff, is seen when they both kiss each other before Anna and Kristoff leave the Valley of the Living Rock.
In "Frozen II", Bulda arrives with the other trolls in the town of Arendelle after suffering an earthquake.
Oaken.
Oaken is the owner of Wandering Oaken's Trading Post and Sauna. Anna visits his store to buy winter clothes, at the same time that Kristoff arrives to buy some rope and carrots. Oaken gives a high price for Kristoff's items, to which Kristoff protests, due to the little amount of money he has, calling Oaken a crook, an insult that causes Oaken to throws Kristoff out of his store without selling a thing. After this, Oaken returns to his amiable attitude toward Anna, who purchases Kristoff's items along with hers.
In "Frozen Fever", Oaken appears participating in the musical number "Making Today a Perfect Day".
In "Olaf's Frozen Adventure" he is one of the people Olaf asks for advice on Christmas traditions, in his case being relaxing in the sauna with his family.
He is also seen in "Frozen II" fleeing from Arendelle along with the other citizens after the earthquake in the town.
In "Once Upon a Snowman", Oaken helps Olaf find a perfect nose for him among the items in his store.
He also appears in "LEGO Frozen Northern Lights", where he opens an ice cream stand and the characters talk to him about getting to the northern lights. He offers them his items at prices Kristoff complains about, causing Oaken to get angry and throw Kristoff into the river.
Oaken also has a cameo appearance in the 2023 short film "Once Upon a Studio", as part of the Walt Disney Animation Studios characters who gather outside the studio while Mickey Mouse organizes them, and being part of the group photo with the rest of the characters.
An alternate version of Oaken also appears in the television series "Once Upon a Time" in the season 4 episode "Family Business", where Belle stops in his store by asking where to find rock trolls.
Duke of Weselton.
The Duke of Weselton is a dignitary from Arendelle's neighboring duchy Weselton, and the secondary antagonist of "Frozen". Weselton was, for many years, Arendelle's closest partner in trade, and the Duke maintained a healthy business relationship with Arendelle for the purpose of exploiting the kingdom's riches. He's determined to get close to the new queen Elsa, until her magical secret is revealed. Then he's the first to call her a monster and try to turn her own kingdom against her. At the end of the film, Kai announces that Arendelle would no longer have relations with Weselton. A recurring gag is that his home territory's name is mispronounced as "Weaseltown", which irritates him.
Although the Duke of Weselton does not appear physically in "Frozen II", while Elsa is in Ahtohallan traversing the caverns she encounters snowy manifestations of various figures from her past, including the Duke.
An alternate and younger version of the Duke of Weselton also appears in the television series "Once Upon a Time" in the season 4 episode "The Snow Queen", attempting to woo the princess Helga of Arendelle out of self-interest, and later trying to do the same with her sister Ingrid, who scared him away with her ice powers.
Marshmallow.
Marshmallow is an enormous icy snowman born from Elsa's powers. He serves as a brute bodyguard charged with keeping intruders away from her ice palace. The menacing white beast doesn't say much, but he packs a powerful punch. He took it upon himself to expel Anna, Olaf, and Kristoff from Elsa's ice palace, and ended up chasing them after Anna angered him by throwing a snowball at him, until they manage to run away from him. Later, he confronts Hans and the other men who were looking for Elsa, the confrontation ending with Marshmallow falling down the mountain. In a post-credits scene, Marshmallow returns to the ice palace, where he finds Elsa's crown and places it on top of its head.
In "Frozen Fever", he appears in the post-credits scene, where Olaf and Kristoff arrive at the ice palace to leave the Snowgies in his care, much to his surprise. In "Frozen II", he appears again in a post-credits scene, where Olaf recaps for him and the Snowglies the story of the events of the film.
In the series of shorts "Olaf Presents", Marshmallow appears in the episodes "Moana", representing the role of Te Kā, "The Lion King", representing the role of Mufasa's ghost, and "Aladdin", representing the role of the Cave of Wonders.
He also appears in "LEGO Frozen Northern Lights", where along with the Snowgies help the protagonists with their sleigh so they can continue their journey.
Marshmallow is also one of the characters featured in the video game "Disney Magical World 2".
In the video game "Kingdom Hearts III", Marshmallow initially fills a role similar to that of "Frozen", driving the characters out of the ice palace, and Sora, the game's protagonist, facing off against Marshmallow as an enemy boss. Subsequently, Sora meets Marshmallow again at the moment when Hans takes Elsa away, and seeing that the snow monster wanted to save Elsa, Marshmallow becomes Sora's party member from then on.
He also appears in the video game "Disney Magic Kingdoms" as a playable character to unlock during a limited time, with his "Angry" appearance being available as a costume for him.
An alternate version of Marshmallow also appears in the television series "Once Upon a Time", being created by Elsa in the episode "A Tale of Two Sisters", to protect herself from Emma and Hook, until he ends up being destroyed by Regina.
King Agnarr and Queen Iduna.
King Agnarr and Queen Iduna are the parents of Anna and Elsa, and former rulers of Arendelle. When their daughters were little, Elsa accidentally injured Anna with her ice powers, so her parents rushed her to see the trolls for care. After that, they decided to separate the two sisters for safety, until Elsa could get control of her powers. Years later, both died during a boat trip.
In "Olaf's Frozen Adventure" it is mentioned that, before the decision to separate Anna and Elsa, they annually rang the Yule Bell with their daughters as to signify the beginning of the Christmas holiday season in Arendelle.
In the prologue of "Frozen II", they tells the girls the story of an enchanted forest King Agnarr saw in his youth, and recounts the war that had broken out between Arendelle and the Northuldra tribe, during which his father fell to his death, and how the fighting angered the spirits of the forest. In the present, their daughters ended up traveling to that forest, where they discovered that their mother was a Northuldra.
Both are also the central characters of the novel "", where their backstory in their youth is told.
In the book "Conceal, Don't Feel: A Twisted Tale", in an alternative reality in which after taking their daughters to see the trolls everything gets complicated in a curse which will cause Anna to turn to ice if she spends too long in proximity to Elsa, in order to protect their children Elsa and Anna's memories of each other are erased, and Anna is left with a baker and his wife, the wife being an old friend of Iduna. Iduna often visits Anna in the bakery under an alias, but never reveals that she is Anna's mother before her death.
An alternate version of them also appears during the season 4 of the television series "Once Upon a Time", with the King of Arendelle being unnamed, and his wife being named Gerda, as a reference to the original female protagonist of the fairy tale "The Snow Queen", and in this version being one of the princesses of the royal family of Arendelle. Both appear in the prologue of "A Tale of Two Sisters", showing the moment in which their ship was about to sink. Gerda returns in the episode "The Snow Queen", showing her past and relationship with her two sisters, Ingrid and Helga.
Kai.
Kai is the overseer and steward of Arendelle Castle and a trusted advisor to Elsa, and later to Anna after she becomes the new queen of Arendelle. His name is a reference to the original male protagonist of the fairy tale "The Snow Queen". Kai introduces the Duke of Weselton to the royal siblings, but mistakenly mispronounces his home's name as "Weaseltown", leading him to be sternly corrected by the Duke. After Elsa finally returns to Arendelle and lifts the winter curse, Kai is made aware of Hans' fate by the French dignitary. Kai then informs the Duke of Weselton that Arendelle will be cutting ties with Weselton permanently, sardonically pronouncing his home's name as "Weaseltown" to the Duke's irritation. 
In "Olaf's Frozen Adventure", Kai is seen tending to Christmas preparations in the castle, when he is surprised by Olaf, who bursts out of a tree. Near the climax, Kai, Anna, and Elsa learn from Sven that Olaf has gotten lost in the woods and is being chased by hungry wolves.
In "Frozen II" Kai appears informing Elsa about the guests who just arrived at the castle. After Elsa awakens the spirits of the Enchanted Forest and an earthquake is caused, Kai emerges from the castle with Anna and other servants just in time to see the water in the fountains drying up. At the end of the film, Kai introduces Anna as the new Queen of Arendelle.
Erik and Francis.
Erik