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.
74 acting credits
Acting · 74
CSI: Crime Scene Investigation
2000
ER
1994
Frasier
1993
King of the Hill
1997
Golden Globe Awards
1944
RuPaul's Drag Race
2009
The View
1997
LIVE with Kelly and Mark
1988
Matlock
1986
Tony Awards
1956
The Ellen DeGeneres Show
2003
Late Night with Conan O'Brien
1993
Tales from the Crypt
1989
Stars in the House
2020
Under the Dome
2013
The Price Is Right
1972
All Rise
2019
The Larry Sanders Show
1992
Intimate Portrait
1993
The Tony Danza Show
2004
CSI: Vegas
2021
thirtysomething
1987
People's Choice Awards
1975
China Beach
1988
Fallen Angels
1993
Spenser: For Hire
1985
Bad Boys
1995
The Hidden Room
1991
This Week
1981
Intelligence
2014
Species
1995
A Dog's Journey
2019
Erin Brockovich
2000
Species II
1998
Mr. Brooks
2007
Always
1989
The Early Show
1999
The Tommyknockers
1993
Fire Down Below
1997
In Good Company
2004
Wonder Woman
2009
My Fellow Americans
1996
The Cowboy Way
1994
Almost Friends
2017
This Changes Everything
2019
The Last Time I Committed Suicide
1997
CSI: Immortality
2015
Columbus Day
2008
Shell Game
1987
Thanks of a Grateful Nation
1998
Perfect Murder, Perfect Town
2000
Conundrum
1996
Crooked Hearts
1991
Perfect Murder, Perfect Town: JonBenét and the City of Boulder
2000
Lethal Vows
1999
After Midnight
1989
Where Are My Children?
1994
In Sickness and in Health
1992
Giving Up the Ghost
1998
Partners
1993
When Love Kills: The Seduction of John Hearn
1993
Murder Live!
1997
Inflammable
1995
Gold Coast
1997
Peacemaker
1989
Death Dreams
1991
Blind Vengeance
1990
Happy Face Murders
1999
Just Looking
1995
Keys
1994
Distant Cousins
1993
Through the Eyes of a Killer
1992
Lie Down with Lions
1994
China Beach: Pilot
1988