Marg Helgenberger

Mary Marg Helgenberger (born November 16, 1958) 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 role as Catherine Willows in the CBS police procedural drama CSI: Crime Scene Investigation (2000–13) and the subsequent TV movie Immortality (2015). She reprised the role in the sequel CSI: Vegas (2022–present). Helgenberger is also known for playing the role of 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. She is also known for roles in the TV series Under the Dome and Intelligence, and the films Species (1995), Species II (1998), Erin Brockovich (2000), and Mr. Brooks (2007).

Description above from the Wikipedia article Marg Helgenberger, licensed under CC-BY-SA, full list of contributors on Wikipedia.

Marg Helgenberger is known for work in acting across film and television. New Release currently presents 16 verified screen credits connected to this profile.

Selected work includes CSI: Vegas (2021), All Rise (2019), A Dog's Journey (2019), Wonder Woman (2009), Mr. Brooks (2007), In Good Company (2004), CSI: Crime Scene Investigation (2000), Erin Brockovich (2000).

The recorded credits span 1972 to 2021, including 11 movies and 5 TV shows. The filmography below lists available titles, release years and known roles.

This profile is updated as additional verified information becomes available.