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.
Born: 16 November 1958
Played In
CSI: Vegas
Catherine Willows
Stars in the House
Self
All Rise
Lisa Benner
This Changes Everything
Self
A Dog's Journey
Hannah Montgomery
Almost Friends
Samantha
CSI: Immortality
Catherine Willows
Intelligence
Lillian Strand
Under the Dome
Christine Price
The Talk
Self
Wonder Woman
Hera (voice)
RuPaul's Drag Race
Self - Guest Judge
Columbus Day
Alice
Mr. Brooks
Emma Brooks
In Good Company
Ann
The Tony Danza Show
Self
The Ellen DeGeneres Show
Self
CSI: Crime Scene Investigation
Catherine Willows
Erin Brockovich
Donna Jensen
Perfect Murder, Perfect Town: JonBenét and the City of Boulder
Patsy Ramsey
Perfect Murder, Perfect Town
Patsy Ramsey
The Early Show
Self
Lethal Vows
Ellen Farris
Happy Face Murders
Jen Powell
Giving Up the Ghost
Anna Hobson
Thanks of a Grateful Nation
Jerrilynn Folz
Species II
Dr. Laura Baker
Gold Coast
Karen DiCilia
Fire Down Below
Sarah Kellogg
The View
Self
The Last Time I Committed Suicide
Lizzy
Murder Live!
Pia Postman
King of the Hill
Mrs. Hanover / Pretty Student (voice)
My Fellow Americans
Joanna (uncredited)
Conundrum
Det. Rose Ekberg
Inflammable
Lt. (j.g.) Kay Dolan
Species
Dr. Laura Baker
Bad Boys
Alison Sinclair
Just Looking
Darlene Carpenter
ER
Karen Hines
Where Are My Children?
Vanessa Meyer Vernon Scott
Lie Down with Lions
Kate Nessen
The Cowboy Way
Margarette
Keys
Maureen 'Kick' Kickasola
Intimate Portrait
Self
Partners
Georgeanne Bidwell
Frasier
Emily
Late Night with Conan O'Brien
Self - Guest
Fallen Angels
Eve Cressy
When Love Kills: The Seduction of John Hearn
Debbie Banister
Distant Cousins
Connie
The Tommyknockers
Bobbi Anderson
Through the Eyes of a Killer
Laurie Fisher
The Larry Sanders Show
Susan Elliot
In Sickness and in Health
Mickey
Crooked Hearts
Jennetta
The Hidden Room
Jane
Death Dreams
Crista Westfield
Blind Vengeance
Virginia Whitelaw
Always
Rachel
After Midnight
Alex (segment "All Night Operator")
Peacemaker
Mrs. Cooper
Tales from the Crypt
Vicki
LIVE with Kelly and Mark
Self - Guest
China Beach: Pilot
K.C. Kolowski
China Beach
KC Koloski
thirtysomething
Shell Game
Matlock
Victoria Rollins / Laura Norwood
Spenser: For Hire
Nancy Kettering
This Week
People's Choice Awards
Self - Presenter
The Price Is Right
Self
Tony Awards
Self - Presenter
Golden Globe Awards
Self - Audience Member
Golden Globe Awards
Self - Nominee
Golden Globe Awards
Self - Presenter