Home CSI Monday, November 16th, 2009 Happy Birthday, Marg Helgenberger! Rachel Trongo 14 years ago Share to Facebook Share to Twitter CSI: Crime Scene Investigation‘s Marg Helgenberger (Catherine Willows) celebrates her birthday today, November 16. Source: Cityfile Topics: Helgenberger Author Rachel Trongo Up Next Interview: Allen MacDonald Prev Post 'Point Of Impact', 'Cuckoo's Nest' & 'Lover's Lanes' Official Details Next post Interview: Allen MacDonald