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 By ...

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 ...

Original cast members William Petersen (who left in 2009) and Marg Helgenberger (who left in 2012) will be joining recent replacement Ted Danson and longtime supporting players Jorja Fox and Eric ...

Marg Helgenberger, left, and William Petersen talk to USA TODAY's Bill Keveney about returning to 'CSI: Crime Scene Investigation' for the series finale Sunday on CBS.

CSI has been canceled. ... William Petersen and Marg Helgenberger to Return for Special Farewell. By: Author Matt Richenthal. Posted on Published: May 13, 2015 · 2:22 PM EDT ...

It's no mystery: Here's what happened to William Petersen, Marg Helgenberger, and the rest of the 'CSI' cast since the series ended in 2015.

NEW YORK, May 13 (UPI) --Original CSI cast members William Petersen and Marg Helgenberger are to return for the show's upcoming series ender, CBS announced Wednesday.The Las Vegas-set, crime scene ...

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 actress reveals to ET that William Petersen is working on the final story with creator Anthony Zuiker. ... ‘CSI: Vegas’: Marg Helgenberger on Joining Paula Newsome for Season 2 ...

William Petersen was in talks to return to CSI for multiple episodes. By Morgan Jeffery Published: 25 January 2012 CSI star Marg Helgenberger has revealed that William Petersen almost returned to ...

Marg Helgenberger will make her final regular appearance as Catherine Willows on CSI this Wednesday, Jan. 25, on CBS and CTV. “It’s a breakup, but not a bad breakup,” Helgenberger said of ...

The former ratings juggernaut, which spawned spin-offs CSI: Miami, CSI: NY and CSI: Cyber, will end its 15-year run with a special movie event. (It will screen in the US on September 27). Original ...