Kristen Bell and Idina Menzel voice the lead roles of Anna and Elsa in "Frozen." Other key members of the cast include Jonathan Groff, Josh Gad, Santino Fondana and Alan Tudyk.
Bell has a long history as a television actor and was previously best known for her roles on the shows "House of Lies" and "Veronica Mars." Menzel previously had a recurring role on the television series "Glee."
Groff, who plays Kristoff, also has a recurring role on "Glee" and on the series "Looking." Gad, who voices Olaf, has made appearances in many television series, including "The Comedians" and "New Girl."