Hewitt became a film star after a lead role in the horror film I Know What You Did Last Summer (1997).The film had great box-office appeal (125,000,000 U. dollars worldwide), and Hewitt became one of the most popular young stars in the USA (together with her co-stars: Freddie Prinze Jr., Ryan Phillippe, and Sarah Michelle Gellar).She later played on television in several short-lived series, such as Fox’s Shaky Ground (1992–1993), ABC’s Byrds of Paradise (1994), and Mc Kenna (1994–1995).
Hewitt can currently be seen on the CBS television series Ghost Whisperer, as Melinda Gordon, a young newlywed who communicates with the dead.
As a singer, her single “How Do I Deal” reached twenty-six on the American charts.
In 2000, Hewitt appeared in The Audrey Hepburn Story.
That same year, she was the “most popular actress on television” due to her Q-rating (a measurement of a celebrity’s popularity) of thirty-seven.
Her first break came as a child actor on the Disney Channel variety show Kids Incorporated (1989–1991).
In 1992, she played Pierce Brosnan’s daughter in a pilot for NBC called Running Wilde, which featured Brosnan as a reporter for Auto World magazine whose stories cover his own wild auto adventures, but the series wasn’t picked up and the pilot never aired.
Hewitt was born in Waco, Texas, to Herbert Daniel Hewitt and Patricia Mae Shipp.
Her father is a technician and her mother worked as a speech pathologist. After the divorce of her parents, Hewitt and her only sibling, Todd Hewitt, were brought up by her mother.
She continued the same role in the short-lived Party of Five spinoff, Time of Your Life (1999).