In the mid-1980s, Stewart appeared in two miniseries: "Hollywood Wives" (1985) and "Sins" (1986), where she played the younger version of Joan Collins's character. She made guest appearances on television series such as "Knight Rider", "Hotel", "Alfred Hitchcock Presents" and "The Outer Limits". She starred in several made-for-TV movies such as "Murder by the Book" (1987), "Passion and Paradise" (1989), "Perfect Harmony" (1991) and "Ordeal in the Arctic" (1993). In 1989, she appeared as Gwen Saunders in the comedy film "Weekend at Bernie's".