William McGregor is a screenwriter and director from rural Norfolk, England. He is known for his active use of landscape and character-driven storytelling.

In 2007, William enrolled at the University for the Creative Arts in Farnham, England. There he studied a foundation course in art and design before beginning a bachelor's degree in digital film and screen arts, also at the University for the Creative Arts.

William's first student film, "Who's Afraid of the Water Sprite?" (2009), received 10 international awards, including the "Royal Television Award for Best Drama." The "Cambridge University Film Festival" was subsequently renamed the "Water Sprite Film Festival" in honor of this film. The "Royal Television Society" called the short film "the best student film we have ever seen."

After "Who's Afraid of the Water Sprite?" (2009), William made two graduation films in 2010: "Bovine" (2010), a 35mm short film about a boy on a farm that was shown at the "Berlin Film Festival," and "The Little" (2010), a dark fantasy about a man and a snail that won the "Coca-Cola Cinemagic Innovation Award" and was also shown at many festivals around the world.