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Marg Helgenberger is an American actress born on November 16, 1958. She is most well-known for playing k.c Koloski in ABC’s China Beach and Catherine Willows in the CBS police procedural CSI: Crime Scene Investigation. She recently reprised her role on CSI: Vegas Season 2 and 3. Helgenberger also portrays Judge Lisa Benner on OWN’s All Rise.

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