Marg Helgenberger

Mary Marg Helgenberger, born on November 16, 1958, is a distinguished American actress whose career spans over four decades. She first gained recognition in the early 1980s with her compelling portrayal of Siobhan Ryan on the popular daytime soap opera Ryan's Hope, where she captivated audiences from 1982 to 1986. Helgenberger is perhaps most celebrated for her iconic role as Catherine Willows in CBS's hit series CSI: Crime Scene Investigation, which aired from 2000 to 2013. She later reprised this character in the TV movie Immortality in 2015 and continues to embody Willows in the sequel series, CSI: Vegas, which began airing in 2022.

In addition to her work on CSI, Helgenberger made a significant impact as K.C. Koloski in the acclaimed ABC drama China Beach from 1988 to 1991, a performance that earned her an Emmy Award for Outstanding Supporting Actress in a Drama Series in 1990. Her film credits include notable appearances in Species (1995), Species II (1998), Erin Brockovich (2000), and Mr. Brooks (2007). Helgenberger has also showcased her talent in television series such as Under the Dome and Intelligence. With a diverse body of work and numerous accolades, Marg Helgenberger remains a prominent figure in the entertainment industry.