Adriana Caselotti
Adriana Caselotti (May 6, 1916 – January 18, 1997) was an American actress, voice actress and singer. Caselotti was the voice of the title character of the first Walt Disney animated feature "Snow White and the Seven Dwarfs", for which she was named as a Disney Legend in 1994, making her the first female voice actor so named.
Ed Wynn
Wynn provided the voice of the Mad Hatter in Walt Disney's film, "Alice in Wonderland" and played The Toymaker alongside Annette Funicello and Tommy Sands in Walt Disney's "Babes in Toyland" released in 1961.