By the time she was a teenager she'd appeared in TV shows such as "Spenser: For Hire" and "Swans Crossing," and she starred as a young Jacqueline Bouvier in the TV mini-series "A Woman Named Jackie."
At 16 Sarah became a soap actress, cast as Kendall Hart in “All My Children.” She won a Daytime Emmy for Outstanding Younger Leading Actress in a Drama Series.
In 1997, Sarah launched her film career, starring in the slasher “I Know What You Did Last Summer,” playing aspiring actress Helen Shivers.
Sarah originally landed the role of shallow cheerleader Cordelia Chase for “Buffy” because the producers felt she was better suited for that part, but she pursued the lead role until she finally beat out fellow cast mates Charisma Carpenter, Julie Benz, and Mercedes McNab, among others.
Sarah received a Golden Globe nomination and won six Teen Choice awards for her work on “Buffy,” and the show was ranked on several “best of” lists, including being rated No. 41 on TV Guide's List of 50 Greatest TV Shows of All Time, and was listed on Time magazine's 100 Best TV Shows of All Time.