John Van Bruggen (born 1957) has wrote several episodes for the first season of Nina's World.
Outside of Sprout, Van Bruggen has wrote for Caillou, Justin Time, Franklin, Rolie Polie Olie, Little Bear, Dog City, George and Martha, Marvin the Tap-Dancing Horse, Beetlejuice, Stickin' Around, Brave Bunnies, and The Most Magnificent Thing.