Complex sentence: In 1989, she began voicing the Disney character Snow White and is now perhaps best known for her roles in "South Park", which she voiced from its 1997 debut until her death, and "The Fairly OddParents".
Split into simpler sentences: In 1989, she began voicing the Disney character Snow White. Bergman is widely known for her voice work in the earliest seasons of "South Park" and "The Fairly OddParents".