The 300th episode of “CSI” will bring a very familiar face back to the Las Vegas crime lab.
Marg Helgenberger, who left the long-running CBS drama a couple years ago, will make a return appearance as Catherine Willows in the milestone episode, which is scheduled to air Oct. 23.
Catherine’s will return will be sparked by the reopening of a cold case from 14 years back. A former casino mogul becomes a suspect when someone is killed in his home, with the details similar to a case the team worked back in 2000.
The episode will include, per TVLine, what executive producer Don McGill is calling “faux-backs” — newly filmed flashback scenes that feature Catherine, Nick (George Eads) and other current cast members who were also around at the show’s start.
Helgenberger left “CSI” in January 2012 as Catherine took a job with the FBI. She stars in CBS’ midseason series “Intelligence,” which is scheduled to premiere in February.