Get to know the real-life couples of […] CSI's Gil Grissom, portrayed by William Petersen ... Gina Cirone. The actor dated the former biology teacher for years before marrying her in 2003 ...

More than 24 million people tuned in to watch character Gil Grissom leave the long-running U.S. crime drama series "CSI," CBS announced Friday. Dr. Gilbert "Gil" Grissom, (Ph.D.) is a fictional ...