Gillian, pronounced Jill'-ee-un,was born on August 9, 1968 in Chicago, IL, to Ed and Rosemary Anderson and is one of 3 children. She lived in Puerto Rico, and then in London, so her father could attend a film school there (Her family still owns a flat there).At age 11 she moved to Grand Rapids, Michigan, where she attended elementary and then high school. She then moved to Chicago where she went to college and once she had gained her BFA she then moved to New York, N.Y. where she made several theater performances and then to Los Angeles in about '91/'92. Upon gaining the role of Dana Scully, Gillian then relocated to Nth Vancouver, Canada where she now resides with her husband and daughter.Gillian attended Fountain Elementary and then City High in Grand Rapids, Michigan. After graduating in 1986 she moved to Chicago and attended the Goodman Theater School at DePaul University (a major theater conservatory), in Chicago, IL where she obtained her Bachelor of Fine Arts degree. While attending DePaul Uni, she also studied at the summer program at the National Theater of Great Britain at Cornell Universityin Ithaca, N.Y.