Kristoff (Frozen) Kristoff (Frozen) Kristoff Bjorgman is a fictional character who appears in Walt Disney Animation Studios' 53rd animated feature "Frozen" (2013). He is voiced primarily by actor Jonathan Groff. Kristoff is a Sami iceman living together with his reindeer companion Sven. Albeit preferring a solitary life, he helps Princess Anna of Arendelle to find her older sister Elsa in the North Mountain. In the early development, Kristoff was originally Kai as in Hans Christian Andersen's "The Snow Queen", but later he was designed as combination of Kai and the robber girl. He is primarily voiced by Jonathan Groff. Kristoff is tall,
Frozen (franchise) Northern Nights" elsewhere), the shorts were compiled as a special and featured the returning voice talents of Kristen Bell, Idina Menzel, Jonathan Groff, and Josh Gad. The special received 2.01 million viewers and ranked fifth for the night on cable. Frozen (franchise) Frozen is a Disney media franchise started by the 2013 American animated feature film, "Frozen", which was directed by Chris Buck and Jennifer Lee from a screenplay by Lee and produced by Peter Del Vecho, with songs by Robert Lopez and Kristen Anderson-Lopez. Walt Disney Animation Studios' chief creative officer John Lasseter served as the film's executive producer.