<Li> The King and Queen of Arendelle (parents) </Li> <Li> Queen Elsa of Arendelle (older sister) </Li> <P> Princess Anna of Arendelle is a fictional character who appears in Walt Disney Animation Studios' 53rd animated film Frozen . She is voiced by Kristen Bell as an adult . At the beginning of the film, Livvy Stubenrauch and Katie Lopez provided her speaking and singing voice as a young child, respectively . Agatha Lee Monn portrayed her as a nine - year - old (singing). </P> <P> Created by co-directors Jennifer Lee and Chris Buck, Anna is loosely based on Gerda, a character from the Danish fairytale "The Snow Queen" by Hans Christian Andersen . In the Disney film adaptation, Anna is depicted as the princess of Arendelle, a fictional Scandinavian kingdom and the younger sister of Princess Elsa (Idina Menzel), who is the heiress to the throne and possesses the elemental ability to create and control ice and snow . When Elsa exiles herself from the kingdom after inadvertently sending Arendelle into an eternal winter on the evening of her coronation, fearless and faithful Anna is determined to set out on a dangerous adventure to bring her sister back and save both her kingdom and her family . </P>

Who sings the part of anna in frozen