Adriana Caselotti was an American actress, voice actress, and singer, best known for providing the voice and physical modeling of Snow White in Walt Disney's first full-length animated film, Snow White and the Seven Dwarfs, in 1937.
She overheard a phone conversation in which Walt Disney was asking her father, Guido, if he knew of any suitable voices for Snow White. She then approached him, suggesting herself for the role. After auditioning for the part in September 1934, she was offered the part and accepted it.
However, after Snow White was finished, she was never featured in any shows or movies, due to signing a contract with Disney that stated she will only use her voice on Snow White.