William Petersen: William Petersen. Producer: CSI: Crime Scene Investigation. William Petersen was born on 21 February 1953 in Evanston, Illinois, USA. He is a producer and actor, known for CSI: Crime Scene Investigation (2000), To Live and Die in L.A. (1985) and Manhunter (1986). He has been married to Gina Cirone since 14 June 2003. They have two children. He was previously married to Joanne Brady.
