### Instruction: Who is Gillian Anderson?
### Response: Gillian Anderson is an American actress, born August 9, 1968. Some of her best known television roles include Special Agent Dana Scully on "The X-Files," Jean Milburn on "Sex Education," DSU Stella Gibson on "The Fall," and Margaret Thatcher on "The Crown." She was born in Chicago, Illinois, but spent many years living in England as a child, and can shift between American and British accents. She has resided in London now for many years. She has a younger brother, Aaron, who suffered from neurofibromatosis and died of a brain tumor in 2011, and a younger sister, Zoe, who is an artist. She has three children: daughter Piper Maru Klotz and sons Oscar and Felix Griffiths.