The actor and producer starred as Gil Grissom, Las Vegas' graveyard shift supervisor, for nine seasons and nearly 200 episodes.
Since leaving CSI in 2014, Guilfoyle has appeared in multiple TV projects, including series like The Good Fight, The Morning ...
Twenty five years ago on this day, Oct. 6, CSI premiered on CBS, launching one of the most successful TV franchises in history. It was a low-key start for the crime drama in the low-profile Friday 9 ...