Williams began her career on television in 1989, with a role in an episode of the CBS series "Beauty and the Beast" and as the first victim of the Hillside Stranglers in NBC's made-for-TV film "The Case of the Hillside Stranglers". Her first feature film appearances were in "Zapped Again!" (1990) and "There Goes My Baby" (1994) opposite "ER's" Noah Wyle. She also appeared in "The Young Riders" in 1991. Also in 1994, she played Jennifer Stolpa in the TV movie "." She guest starred on the hit Fox teen drama "Party of Five" in its first season in 1994 as a woman named Annie Alcott. She also guest-starred in the 1992 "Law & Order" episode "Sisters Of Mercy" as a meth addict who accuses a nun of sexually abusing her.