The character Kristoff is meant to be Sami, a group of indigenous people who live in northern Europe and Asia. Some people who saw the first "Frozen" complained that Kristoff was not a good way to show Sami because he is light-skinned and blond. This is called whitewashing. Although some Sami look like Kristoff, most have darker skin and hair. When making the 2019 sequel, Frozen II, Disney signed a contract with Sami leaders and hired Sami experts to make sure the fictional Sami in the movie, the Northuldra, would be shown respectfully.