Kristoff’s reindeer companion is named Sven.
Sven is Kristoff’s loyal partner in the Frozen films. The pair work together harvesting and transporting ice, and Sven helps Kristoff join Anna’s search for Elsa after Arendelle is trapped in winter. Although Sven is a reindeer, Kristoff often treats him like a close friend and interprets his expressive sounds and gestures.
Sven is unusual among the major Frozen characters because he does not speak in the first film. Kristoff sometimes voices what he imagines Sven is saying, creating one of the franchise’s recurring jokes. Sven later appears in Frozen 2, Frozen Fever, Olaf’s Frozen Adventure, and other Frozen-related productions.
The name can be confused with familiar reindeer names such as Rudolph or Prancer, but those characters belong to other Christmas stories. Sven is an original character created for Disney’s Frozen franchise. The animation team studied a real reindeer, then also used dog-like mannerisms to make Sven’s movements more readable and appealing.