American actress
Mary Margaret Helgenberger is an American actress. She began her career in the early 1980s and first came to attention for playing the role of Siobhan Ryan on the daytime soap opera Ryan's Hope from 1982 to 1986. She is best known for her roles as Catherine Willows in the CBS police procedural drama CSI: Crime Scene Investigation (2000–13) and the subsequent TV movie Immortality (2015) and as K.C. Koloski in the ABC drama China Beach (1988–91), which earned her the 1990 Emmy Award for Outstanding Supporting Actress in a Drama Series.
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See more birthdays on 16th NovemberThere are 91 more celebrities who are age 66 like Marg Helgenberger. We're showing the top 4 most popular below but you can see the rest here.