In 1984, at the age of 14, she became the youngest Primetime Emmy Award winner for her title role in the television film Something About Amelia.
In 1983, Zal appeared in the films Table for Five starring Jon Voight and Testament opposite Jane Alexander.
She also received a Golden Globe Award for Best Supporting Actress – Series, Miniseries or Television Film nomination for her performance.
At the time, she was a second-year student at the University of California, Los Angeles (UCLA) and filmed the role while studying world arts and cultures.
She also guest starred in a number of television series, including Lois & Clark: The New Adventures of Superman, The Pretender and NCIS.