Marg Helgenberger

Bio: Mary Marg Helgenberger is an American film and television actress known for her roles as Catherine Willows in the CBS drama CSI: Crime Scene Investigation, and as K.C. Koloski in the ABC drama China Beach, which earned her the 1990 Emmy Award for Outstanding Supporting Actress in a Drama Series.

Born: November 16, 1958 in Fremont, Nebraska, United States