William Petersen, Marg Helgenberger Tease Their 'CSI' Return to Say Goodbye to the Show Where 'Each Day Was an Invention' CSI ends its run with a two-hour special airing Sunday at 9 p.m. ET on CBS ...

"They were really tough on us all the way from the pilot through several episodes," says Petersen, joining another longtime star, Marg Helgenberger, for an interview during a shooting break. "When ...

CSI: Vegas already lost William Petersen and Jorja Fox, but now Marg Helgenberger is coming back as Catherine. When you purchase through links on our site, we may earn an affiliate commission.

CBS confirmed that CSI will end its 15-season run with a two-hour finale, featuring original stars William Petersen and Marg Helgenberger.

CSI star Marg Helgenberger has revealed that William Petersen almost returned to the show. The actress told TV Guide that Peterson intended to reprise his role as Gil Grissom as part of a ...

Original "CSI" cast members William Petersen and Marg Helgenberger are to return for the show's upcoming series ender, CBS announced Wednesday.

Marg Helgenberger (left) Jorja Fox, William Petersen and Ted Danson in Sunday's series finale of "CSI," ending its 15-year run. Sonja Flemming/CBS ...

The question, and the characters gathered for the scene — Grissom (William Petersen), the former Las Vegas crime-scene-investigation team leader, colleague Catherine Willows (Marg Helgenberger ...

Grillows is once again super real on the set of the two-hour CSI finale. Marg Helgenberger posted the above photo on her Instagram on Monday, writing, “I am crazy about this wonderful man ...

Panicked execs on CSI: Vegas are spoiling Marg Helgenberger rotten to make sure the star doesn’t leave like her costar William Petersen, RadarOnline.com has learned. The CBS drama premiered in ...

CBS have confirmed the rumors that CSI is getting a TV-movie finale - and the show's original stars will be back.

Original CSI cast member Marg Helgenberger reunited with William Petersen, Jorja Fox, and more costars in ahead of the Sept. 27 series finale; pics ...