CSI has become one of the most-watched crime investigation dramas on television ... that the actress decided to leave the series in season 8, only to return in season 11. From the second episode ...

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'CSI' Exclusive: Marg Helgenberger is staying! Ask Ausiello: Spoilers on 'Grey's,' 'CSI,' 'Torchwood,' 'Bones,' and more! CSI event series reportedly in 'very early development stages' at CBS Jane ...

The actor will reunite with Marg Helgenberger on season 2 of the CBS revival. Showrunner Jason Tracey dishes to ET about the perks of having Catherine Willows back in the 'CSI' universe.