Marg Helgenberger Bio-Wiki, Age, Family, Husband, CSI, and Net Worth

This article will answer every question you have about Marg Helgenberger. Below are some of the frequently asked questions about her.

  1. What does Helgenberger do for a living?
  2. Who are Helgenberger’s parents and siblings?
  3. What are Helgenberger’s interests and hobbies?
  4. Is Helgenberger married or does she have a boyfriend?
  5. Does Helgenberger have any children?
  6. Where is Helgenberger now?
  7. How tall is Helgenberger?
  8. How much money does Helgenberger earn?
  9. What is Helgenberger’s net worth?

N/B: Please read the entire post to have all your questions answered.

Who is Marg Helgenberger?

Marg Helgenberger is an American actress best known for her role as Catherine Willows in the CBS police procedural drama CSI. Marg 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 also known for the TV movie Immortality (2015). She has also played as K.C. Koloski in the ABC drama China Beach (1988–91). This earned her the 1990 Emmy Award for Outstanding Supporting Actress in a Drama Series. Marg is also known for her TV series Under the Dome and Intelligence, and also the films Species (1995), Species II (1998), Erin Brockovich (2000), and Mr. Brooks (2007).

Marg began as a nightly weather person at KHGI-TV, the ABC affiliate in Kearney, while she attended college (her name was changed by the producer to Margi McCarty). During the summer, Mary also worked as a deboner at her father’s meatpacking plant during the summer. She then developed an interest in acting after portraying the role of Blanche Dubois in a university production of A Streetcar Named Desire,

While she was performing in the summer 1981 NU campus production of Shakespeare’s Taming of the Shrew, where she played Kate, she was spotted by a scout for the TV soap opera Ryan’s Hope. She landed her first professional role on the long-running ABC Daytime soap opera in March 1982 soon after completing college, playing amateur cop Siobhan Ryan Novak DuBujak, a role that was previously played by Ann Gillespie. After nearly four years, she left the show in January 1986 to pursue new opportunities.

Mary guest-starred in an episode of the ABC series Spenser: For Hire, NBC’s Matlock, and also ABC’s thirtysomething. Marg also played a regular role as Natalie Thayer, opposite Margot Kidder and James Read, on the six-episode drama-comedy series Shell Game (1987).

She later had a role as Karen Charlene “K.C.” Koloski, a heroin-addicted prostitute on the ABC war drama series China Beach from 1988 to 1991. Her role in the series earned her an Emmy Award for Outstanding Supporting Actress in a Drama Series in 1990.

She made her feature-film debut in a leading role as an all-night answering-service operator in one segment of the Wheat brothers’ horror anthology After Midnight in 1989. Marg then followed it up with a role in Steven Spielberg’s romantic comedy-drama Always (starring Richard Dreyfuss, Holly Hunter, and John Goodman), which is a modern version of the original 1943 Victor Fleming film A Guy Named Joe.

A photo of Marg Helgenberger
A photo of Marg Helgenberger

During the early to mid-1990s, She played the love interest to Woody Harrelson’s character in The Cowboy Way (1994) during the early, and also had a small role as Capt. Alison Sinclair in Michael Bay’s action comedy film Bad Boys (1995). Marg also played Dr. Laura Baker, a molecular biologist, in Roger Donaldson’s science-fiction thriller, Species (1995), and also reprised the role in a sequel, Species II (1998).

Marg had roles in the television films Not on the Frontline and In Sickness and in Health. She then played opposite Bruno Kirby in I’ll Be Waiting, and also as a novelist on the miniseries Stephen King’s The Tommyknockers opposite Jimmy Smits. After she played a recurring role as George Clooney’s love interest on NBC’s medical drama ER, Mary appeared as David Caruso’s sex-starved widow on Showtime’s Elmore Leonard’s Gold Coast. She also starred with Steven Seagal in the 1997 action film Fire Down Below and then portrayed the furious sibling to Steven Weber’s character on the miniseries about the elusive Gulf War syndrome, Thanks of a Grateful Nation. Marg also starred opposite Ann-Margret in Showtime’s Happy Face Murders.

Helgenberger made a guest appearance in the Valentine’s Day episode of Frasier in 2000. There, Frasier (Kelsey Grammer) finally wears down his dad Martin’s resistance and also gets the older man to accompany him to the opera. Actually, this invitation is but a smokescreen, so that Frasier can “accidentally” run into his newest dream girl Emily (Helgenberger).

How Old is Marg Helgenberger?

Mary Marg Helgenberger is 62 years old as of 2020 having been born on November 16, 1958, in Fremont, Nebraska, U.S. She shares her birthday with other famous people Pete Davidson, Lisa Bonet, Maggie Gyllenhaal, Yuki Uchida, Shigeru Miyamoto, Brandi Glanville, Gemma Atkinson, among others.

Marg Helgenberger Education

Helgenberger attended North Bend Central High School and graduated. She aspired to be a nurse like her mother until she went to college. She attended Kearney State College (now the University of Nebraska at Kearney) in Kearney, Nebraska, then joined Northwestern University’s School of Speech in Evanston, Illinois, (now the School of Communication) and she earned a B.S. degree in speech and drama.

Marg Helgenberger Family

Who are Marg Helgenberger’s Parents?

Marg was born to Mary Kay (née Bolte), a nurse, and Hugh Helgenberger, a meat inspector. She was then raised in North Bend, Nebraska.  She is of Irish and German descent and had a Roman Catholic upbringing. Marg played the French Horn in her high school marching band.

Does Marg Helgenberger has Siblings?

Mary has an older sister named Ann and a younger brother named Curt.

Marg Helgenberger Husband

Helgenberger married Alan Rosenberg, a guest actor on Ryan’s Hope in 1989. The two had met in 1984, became friends, and started dating in 1986. The couple announced on December 1, 2008, that they were separating. Marg filed for divorce on March 25, 2009, and it was finalized in February 2010.

Marg Helgenberger Kids

Helgenberger and Rosenberg have a son Hugh Howard Rosenberg who was born in 1990 and was named after Helgenberger’s late father.

Marg Helgenberger CSI

Marg co-starred in the role of Catherine Willows, a former showgirl employed as a blood-spatter analyst on the CBS drama CSI: Crime Scene Investigation. Marg’s performance as the female lead has earned her two Emmy Awards and two Golden Globe nominations. Her fellow cast members and she won the Screen Actors Guild Award for Outstanding Performance by an Ensemble in a Drama Series in 2005. She visited the Clark County Coroner’s Office to learn about her role when CSI first started filming, even viewing autopsies in progress. She got the chance to act with her ex-husband, Alan Rosenberg, when he guest-starred on CSI, season five (“Weeping Willows”) and season seven (“Leaving Las Vegas”).

Marg acted in the feature film Erin Brockovich and portrayed Patsy Ramsey in the miniseries about the mysterious murder of six-year-old beauty-pageant contestant JonBenét Ramsey in Perfect Murder, Perfect Town during her time on the show. She then starred as Dennis Quaid’s wife and also Scarlett Johansson’s mother in writer-director Paul Weitz’s romantic drama comedy In Good Company (2004).

Marg’s hometown of North Bend, Nebraska, renamed the street on which she had her childhood home “Helgenberger Avenue” in 2006. Marg was in the film Mr. Brooks with Kevin Costner in which her character’s daughter is played by Danielle Panabaker in 2007, the sister of Kay Panabaker, who plays her fictional daughter on CSI. Marg was chosen as an endorser of the Got Milk? campaign in April 2008.

Forbes magazine placed Marg’s third among primetime’s top-earning women in December 2009. She has estimated earnings of $9.5 million, after Tyra Banks and Katherine Heigl. Mary received the 2,458th star on the Hollywood Walk of Fame on January 23, 2012, for her television work. She then lent her voice as Greek goddess Hera to the straight-to-video animated film Wonder Woman.

After William Petersen’s departure from CSI, Marg became one of the two highest-paid actors in any of the CSI franchises, earning $375,000 per episode, the same as David Caruso, and also $25,000 more per episode than Laurence Fishburne.

Marg only appeared in the first 12 episodes of the 12th season of CSI, as she wanted to return to the stage. The producers said they left the door open for her if she wanted to return. Mary left the show on January 25, 2012, during a two-part episode (“Ms. Willows Regrets” and “Willows in the Wind”). The last episode was the most-watched of the season with 14.26 million viewers.

She also starred as Lilian Strand in the series Intelligence alongside Josh Holloway and Meghan Ory. Additionally, Marg briefly returned to CSI as Catherine for the 300th episode. She then joined the third season of Under the Dome in February 2015.

Marg Helgenberger Net Worth

The actress has an estimated net worth of $16 million.

Marg Helgenberger Cancer

Marg and her ex-husband Rosenberg became involved in the fight against breast cancer as a result of Mary’s mother’s 27-year battle against breast cancer. They have also hosted a benefit called Marg and Alan’s Celebrity Weekend annually in Omaha since 1999.

Marg Helgenberger Height

Adding to her beautiful, well-curved, Helgenberger stands at a height of 5’6″ (168 cm). Her other body measurements include:

  • Body shape: Hourglass
  • Dress size: 6
  • Breasts-Waist-Hips: 36-24-36 inches (91-61-91 cm)
  • Shoe/Feet: 6.5
  • Bra size: 34B
  • Cup size: B
  • Weight: 120 lbs (54 kg)

Marg Helgenberger Movies





Holding Patterns



Wonder Woman


Conan: Red Nail

Princess Tascela


Columbus Day



Mr. Brooks

Mrs. Emma Brooks


In Good Company

Ann Foreman


Erin Brockovich

Donna Jensen


Lethal Vows

Ellen Farris


Species II

Dr. Laura Baker


Fire Down Below

Sarah Kellogg

The Last Time I Committed Suicide



Frame by Frame

Det. Rose Ekberg

My Fellow Americans



Just Looking

Darlene Carpenter

Bad Boys

Capt. Alison Sinclair


Dr. Laura Baker


The Cowboy Way



Distant Cousins



Crooked Hearts



After Midnight





Mrs. Cooper




TV Shows





Hell’s Kitchen



Under the Dome

Christine Price



Lilian Strand

King of the Hill

Mrs. Hanover

2013, 2015

CSI: Crime Scene Investigation

Catherine Willows




Perfect Murder, Perfect Town

Patsy Ramsey


Happy Face Murders

Jen Powell


Giving Up the Ghost

Anna Hobson

Thanks of a Grateful Nation

Jerrilynn Folz


Murder Live!

Pia Postman

Gold Coast

Karen DiCilia



Karen Hines


The Larry Sanders Show

Susan Elliot


Kay Dolan



Maureen Kickasola

Lie Down with Lions

Kate Nessen

Where Are My Children?

Vanessa Meyer Vernon Scott



Georgeanne Bidwell

The Tommyknockers

Roberta “Bobbi” Anderson

Fallen Angels

Eve Cressy

The Seduction of John Hearn

Debbie Banister


In Sickness and in Health


Through the Eyes of a Killer

Laurie Fisher


Tales from the Crypt


The Hidden Room


Death Dreams

Crista Westfield


Blind Vengeance

Virginia Whitelaw


China Beach

Karen Charlene Koloski


Shell Game

Natalie Thayer


Laura Norwood


Spenser: For Hire

Nancy Kettering


Ryan’s Hope

Siobhan Ryan

Marg Helgenberger Twitter