Nancy Marie Pimental (born May 31, 1965) is an American actress, game show host and television and film writer. Born in Boston, Massachusetts, she attended Somerset High School, graduating in 1983 from Worcester Polytechnic Institute, where she was a member of the Phi Sigma Sigma sorority with a degree in chemical engineering in 1987. From 1998 to 2001, Nancy was one of the writers of Comedy Central's hit animated series South Park and in 2002, she wrote the script for the 2002 Film The Sweetest Thing. She also replaced Jimmy Kimmel as co-host of Win Ben Stein's Money a job she held from 2000 to 2002. Nancy is best friends with actress Kate Walsh of Grey's Anatomy and Private Practice fame. In 2010, she joined the staff of the Showtime dramedy Shameless as a writer and producer. Then, in its second season, she serves not only as a writer but supervising producer. She was also in a bevy of 2003 films such as Prey for Rock & Roll, Dumb and Dumber: When Harry met Lloyd and Dickie Roberts: Former Child Star.