I think Greg, Nick and Sara might go back that far. Doc Robbins and David ME. assistant go back to the first season.I don't hate it , I just think that it is a little long in the tooth now after 15 years and it is the last CSI show on the air. I see Cbs wanting to cancel it and move on to a new franchise. But you are right about watching it. I haven't watched since the last season after Katherine left and they brought the other lady in her place. Is there anyone left from the original cast left now?