Marg Helgenberger
American actress · United States · On the map · Actors · Born 1958 · age 67
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.
Marg Helgenberger is read about 1,301 times a day, in 41 languages.
A typical day, 30 days to 6 November 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 112 days, one point a day.
Something wrong?A life in dates
CSI: VegasSeries, Catherine Willows2019
All RiseSeries, Lisa Benner
A Dog's JourneyFilm, 2019Hannah Montgomery2017
Almost FriendsFilm, Samantha2010
The TalkSeries2009
Wonder WomanFilm, Hera (voice)2008
Columbus DayFilm, Alice2004
In Good CompanyFilm, Ann2003
The Ellen DeGeneres ShowSeries2000
Erin BrockovichFilm, Donna Jensen1999
Happy Face MurdersFilm, Jen Powell1997
King of the HillSeries, Mrs. Hanover / Pretty Student (voice)
Fire Down BelowFilm, 1997Sarah Kellogg1996
ConundrumFilm, Det. Rose Ekberg1995
Bad BoysFilm, Alison Sinclair1993
FrasierSeries, Emily
Distant CousinsFilm, 1993Connie1992
In Sickness and in HealthFilm, Mickey1990Primetime Emmy Award for Outstanding Supporting Actress in a Drama SeriesAward
Blind VengeanceFilm, 1990Virginia Whitelaw1989
Tales from the CryptSeries, Vicki
After MidnightFilm, 1989Alex (segment "All Night Operator")1986
MatlockSeries, Victoria Rollins / Laura Norwood1972
The Price Is RightSeries1958Born16 November 1958People around Marg
Steven Spielberg Produced Under the Dome, directed Always (1990)
Peter Weller Directed Under the Dome and Partners- Frank Mancuso, Jr. Produced Species and Species II
Peter Coyote Also in Erin Brockovich and Intelligence
Steven Seagal Produced Fire Down Below (1997)
Kevin Costner Produced Mr. Brooks (2007)
Danny DeVito Produced Erin Brockovich (2000)
Steven Soderbergh Directed Erin Brockovich (2000)
Clark Gregg Also in In Good Company (2005)
Jerry Bruckheimer Produced Bad Boys (1995)
Eriq La Salle Directed Under the Dome
Mark Isham Wrote A Dog's Journey and Crooked Hearts
Roger Donaldson Directed Species (1995)Brian Grazer Produced The Cowboy Way (1994)
Aisha Hinds Also in Under the Dome and Mr. Brooks
Megan Gallagher Also in China Beach and Lethal Vows
Niels Arden Oplev Directed Under the Dome
Stephen Williams Directed Intelligence- David Semel Directed Intelligence
Dennie Gordon Directed Under the Dome
Michael Shamberg Produced Erin Brockovich (2000)
David Von Ancken Directed Intelligence
Gail Mancuso Directed A Dog's Journey (2019)
David Barrett Directed Under the Dome
Partners
Is this everyone?
Only relatives with a profile here are drawn, so a family can be larger than this. A line here can also be wrong.
Correct this familyKnown for
View all 40 titles
A Dog's Journey 2019
Erin Brockovich 2000
CSI: Immortality 2015
Wonder Woman 2009
Mr. Brooks 2007
Filmography 40
78 credits on file
Television 24
Media & music
Awards
About this person
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).