Snow White (Disney character)
Originally, Disney could not find what they thought was a suitable voice for Snow White. Around 150 girls auditioned for the role of Snow White, including well-known actresses such as Deanna Durbin, whose voice seemed too old to Disney. One assistant to Disney called music teacher Guido Caselotti, complaining that Hollywood had no singing girls. Caselotti wanted to offer to send their best to listen to the students, but it turned out that his 20-year-old daughter Adriana overheard a conversation on another phone in the house, and she began to sing in a young girl's voice. Her father was confused and told his daughter to get away from the phone, but the casting director liked her voice and invited her to audition. After Walt Disney heard her, he immediately gave her the role. The studio signed a multi-page contract with Adriana Caselotti: she was forbidden to sing in a movie or on the radio before or after the movie premiered because Walt Disney did not want the voice of Snow White to be heard anywhere else. Instead, she received $970 (now worth approximately $).
Anna (Frozen)
On March 5, 2012, Kristen Bell was cast to voice the adult Anna. Livvy Stubenrauch was chosen to portray Anna as a young child, while Katie Lopez, daughter of the husband-and-wife songwriting team of the film, Kristen Anderson-Lopez and Robert Lopez, provided the singing voice for young Anna in ""Do You Want to Build a Snowman?"" musical sequence. Additionally, Agatha Lee Monn, daughter of the film's director Jennifer Lee, portrayed teenage Anna in this song. Lee explained about these casting decisions, "We really wanted to use the first two verses of this song to show you Anna's personality. And we wanted the singing to be done by real-sounding kids, not necessarily Broadway kids." Kristen Bell and Idina Menzel (who voiced Elsa in the film) had both auditioned for Rapunzel in "Tangled" and had already known each other, but they did not get the part.