September 15, 2015 - Frederick M. Brown/Getty Images North America
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18.
Marg Helgenberger
Marg Helgenberger, best known for her role on CSI for 12 seasons, will turn 60 on Nov. 16. While her stint on CSI might be over, the actress starred in a Fox TV movie last year called Behind Enemy Lines and has some projects under wraps for 2018.
