Marg Helgenberger
Mary Margaret "Marg" 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 role as Catherine Willows in the CBS police procedural drama CSI: Crime Scene Investigation (2000–13), the subsequent television film Immortality (2015), and the second and third seasons of the sequel series CSI: Vegas (2022–2024). 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).
Wikipedia
Frequent Collaborators
🎬 Movies
This Changes Everything
actor
2019
A Dog's Journey
actor
2019
Almost Friends
actor
2017
CSI: Immortality
actor
2015
Wonder Woman
actor
2009
Columbus Day
actor
2008
Mr. Brooks
actor
2007
In Good Company
actor
2004
Erin Brockovich
actor
2000
Perfect Murder, Perfect Town: JonBenét and the City of Boulder
actor
2000
Lethal Vows
actor
1999
Giving Up the Ghost
actor
1998
Thanks of a Grateful Nation
actor
1998
Species II
actor
1998
Fire Down Below
actor
1997
The Last Time I Committed Suicide
actor
1997
Murder Live!
actor
1997
Conundrum
actor
1996
Species
actor
1995
Bad Boys
actor
1995
Lie Down with Lions
actor
1994
The Cowboy Way
actor
1994
Partners
actor
1993
When Love Kills: The Seduction of John Hearn
actor
1993
Through the Eyes of a Killer
actor
1992
In Sickness and in Health
actor
1992
Crooked Hearts
actor
1991
Death Dreams
actor
1991
Always
actor
1989
After Midnight
actor
1989
Peacemaker
actor
1989
