 In 1994, she had the recurring role as Dr. Sarah Langworthy during the first season of the NBC medical drama "ER", and from 1996 to 1997 she co-starred alongside Corbin Bernsen on the syndicated science fiction series "The Cape".In 2000, Ferrell co-starred alongside Khandi Alexander in the HBO miniseries "The Corner".She later guest-starred on "Soul Food", "The Shield" and "".