Jillian Peterson: Jillian Peterson. Actress: High Fidelity. Jillian Peterson was born on 19 May 1978 in Downers Grove, Illinois, USA. She is an actress, known for High Fidelity (2000), The Watcher (2000) and S.W.A.T. (2017).
Known For: High Fidelity (Laura's Sister Jo(as Jill Peterson)), The Watcher (Jessica), S.W.A.T. (Julia), 9-1-1 (Officer #1)