CBS announced in Feb. 2021 that it gave a straight-to-series order to CSI: Vegas, a sequel to the mothership CSI series,
CSI: Crime Scene Investigation (2000), for the 2021-22 season and that it will be led by returning CSI stars
William Petersen and
Jorja Fox as Gil Grissom and Sara Sidle. After the ending of the first season, Petersen and Fox did quit from the series. For the second season it was announced the return of
Marg Helgenberger as Catherine Willows.