Marg Helgenberger

Actress

American Fremont, Nebraska, USA Scorpio 5 ft 6 in (1.68 m)

Quick Info

ProfessionActress
NationalityAmerican
Date of Birth16/11/1958
Age67 years
BirthplaceFremont, Nebraska, USA
Zodiac SignScorpio

Latest News about Marg Helgenberger

13/11/2026

Helgenberger made her Boston Blue debut in the episode airing on this date, introducing Gwen Silver as the estranged mother who arrives during her daughter's wedding preparations. The role is set to continue beyond a single appearance.

07/10/2026

Helgenberger was announced as the narrator of the audiobook version of Dead Matters, a paranormal crime thriller by former CSI writer and producer Josh Berman. The novel, Berman's debut as a novelist, is scheduled for release in January 2027.

16/09/2026

Marg Helgenberger was cast in a recurring role in Season 2 of the CBS series Boston Blue as Gwen Silver, the estranged biological mother of the character Sarah Silver. The announcement reunited her with CBS after her years on the CSI franchise.

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Bio/Wiki

Full NameMary Margaret Helgenberger
SummaryAmerican actress known for playing forensic investigator Catherine Willows in the CBS series CSI: Crime Scene Investigation and its sequel CSI: Vegas. She began her screen career in the early 1980s, first gaining attention as Siobhan Ryan on the ABC daytime soap Ryan's Hope.

Physical Stats & More

Height5 ft 6 in (1.68 m)

Educational Qualification(s)

UniversityNorthwestern University
DegreeBachelor of Science in drama
Other StudiesAttended the University of Nebraska at Kearney

Personal Life

ReligionRoman Catholic upbringing
HeritageIrish and German descent
Charity InvolvementSupports breast cancer research in memory of her father

Relationships & More

SpouseAlan Rosenberg
MarriageMarried in 1989; later divorced

Family

FatherHugh Helgenberger, a meat inspector (deceased)
MotherMary Kay Helgenberger (née Bolte)

Career

DebutFeature film debut in After Midnight (1989)
Breakthrough TV RoleSiobhan Ryan on Ryan's Hope (1982-1986)
Notable Television Work
  • China Beach (K.C. Koloski, 1988-1991)
  • CSI: Crime Scene Investigation (Catherine Willows, 2000-2013)
  • CSI: Vegas (2022-2024 seasons)
  • Under the Dome
  • Intelligence
  • All Rise
  • Boston Blue (Gwen Silver, 2026)
Notable Film Work
  • Always (1989)
  • Species (1995)
  • The Cowboy Way (1994)
  • Species II (1998)
  • Erin Brockovich (2000)
  • Mr. Brooks (2007)
  • In Good Company (2004)
Awards and Honours
  • Emmy Award for Outstanding Supporting Actress in a Drama Series (1990) for China Beach
  • Star on the Hollywood Walk of Fame (January 23, 2012)
Latest RoleGwen Silver in Boston Blue (recurring role, Season 2, from 13/11/2026)

Some Lesser Known Facts

1. Began as a nightly weather presenter at KHGI-TV in Kearney, Nebraska, while still at college, where the producer changed her on-air name to Margi McCarty
2. Originally wanted to become a nurse like her mother
3. Played the French horn in her high school marching band
4. A street in her hometown of North Bend, Nebraska was named Helgenberger Avenue in 2006
5. Met Alan Rosenberg on the set of Ryan's Hope in 1984

Also born on 16 November

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