William Norman Ferguson (September 2, 1902 – November 4, 1957) was an animator for Walt Disney Studios and a central contributor to the studio's stylistic development in the 1930s. He is most frequently noted for his contribution to the creation of Pluto, one of the studio's best-known and most enduring characters, and is the artist most closely associated with that character. He is also credited for developing Peg-Leg Pete and the Big Bad Wolf. Ferguson, known at the studio as "Norm" or "Fergy", was the primary animator of the witch in Snow White and the Seven Dwarfs, the first in a long line of great Disney feature villains. He was also a sequence director on the film.