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Marg Helgenberger

Marg Helgenberger

Actor · Born November 16, 1958 (67) · Fremont, Nebraska, USA

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.

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Biography from TMDB.

Born
November 16, 1958 (67)
From
Fremont, Nebraska, USA
Works as
Actor
Titles
42 on MovieCove · 61 credits in all
TMDB popularity, last 64 days to Oct 27Down 30% in 30 days

What are Marg Helgenberger's films like?

Across their 33 MovieCove titles with a thematic analysis, their films lean Bonds and Morality.

What they feel like to watch

their average across 28 films
ToneFeelDemandtheir average · filled zone: the category

A split, not a type: Grounded 14 · Stylized 13 · Heightened 1

Gentle 5 · Charged 12 · Intense 11

Steady 12 · Shifting 16 · Whiplash 0

Straight-faced 17 · Some laughs 8 · Funny 3

Slow burn 8 · Even-paced 16 · Relentless 4

Casual 11 · Engaged 16 · Full focus 1

Easy watch 8 · Affecting 12 · Heavy 8

Resolved 22 · Open-ended 6 · Ambiguous 0

Roles they play

21 analyzed roles

Usually the Ally: 9 of 21 analyzed roles.

Ally
9 of 21
Hero
4 of 21
Mentor
3 of 21
Shapeshifter
1 of 21
Shadow
1 of 21
Trickster
1 of 21
Herald
1 of 21
Threshold guardian
1 of 21
Show the 21 roles

Moods and endings

endings are an aggregate; no title is named

Dominant moods · mentions across their titles

Tense
25
Warm
9
Melancholic
8
Thrilling
9
Hopeful
8
Other
27

How their films end · 3 with a twist

  • Happy8
  • Bittersweet17
  • Tragic2
  • Ambiguous5
  • Cyclical1

AI-generated from each title's plot synopsis and cast list, with extra plot summaries, reviews and Parents Guide notes for titles the model may not know, and the model's own knowledge of the ones it recognizes. Only analyzed titles count, so this covers part of the filmography; the feel axes count films only for now.

Where can I watch Marg Helgenberger's films?

As of October 24, 2026, 22 of their 42 MovieCove titles stream on a subscription or free service, most on Tubi (10).

Subscription and free streaming for Marg Helgenberger's titles on MovieCove; rent and buy are not counted. Titles are listed by Midcredits score, highest first, at most 12 per service; a dashed chip is a producer credit or a minor one, such as a thanks. A service opens the browse page, which counts movies only, so its number can differ.

Filmography

61 credits, 42 with a MovieCove page; 15 appearances as themselves are hidden until asked for.

  • CSI: Vegas(2021)

    Show 31 episodes · as Catherine Willows

    Midcredits score: 74th percentile of all shows
  • All Rise(2019)

    Show 45 episodes · as Lisa Benner

    Midcredits score: 59th percentile of all shows
  • A Dog's Journey(2019)

    as Hannah Montgomery

    Midcredits score: 95th percentile of all films
  • Almost Friends(2016)

    as Samantha

    Midcredits score: 42nd percentile of all films
  • CSI: Immortality(2015)

    as Catherine Willows

    Midcredits score: 90th percentile of all films
  • Intelligence(2014)

    Show 13 episodes · as Lillian Strand

    Midcredits score: 41st percentile of all shows
  • Under the Dome(2013)

    Show 11 episodes · as Christine Price

    Midcredits score: 34th percentile of all shows
  • Wonder Woman(2009)

    as Hera (voice)

    Midcredits score: 87th percentile of all films
  • Columbus Day(2008)

    as Alice

    Midcredits score: 31st percentile of all films
  • Mr. Brooks(2007)

    as Emma Brooks

    Midcredits score: 80th percentile of all films
  • In Good Company(2004)

    as Ann

    Midcredits score: 56th percentile of all films
  • CSI: Crime Scene Investigation(2000)

    Show 264 episodes · as Catherine Willows

    Midcredits score: 80th percentile of all shows
  • Erin Brockovich(2000)

    as Donna Jensen

    Midcredits score: 94th percentile of all films
  • Perfect Murder, Perfect Town (not in the MovieCove catalog yet)(2000)

    Show 2 episodes · as Patsy Ramsey

  • Perfect Murder, Perfect Town: JonBenét and the City of Boulder (not in the MovieCove catalog yet)(2000)

    as Patsy Ramsey

  • Lethal Vows (not in the MovieCove catalog yet)(1999)

    as Ellen Farris

  • Happy Face Murders (not in the MovieCove catalog yet)(1999)

    as Jen Powell

  • Giving Up the Ghost (not in the MovieCove catalog yet)(1998)

    as Anna Hobson

  • Thanks of a Grateful Nation(1998)

    as Jerrilynn Folz

    Midcredits score: 39th percentile of all films
  • Species II(1998)

    as Dr. Laura Baker

    Midcredits score: 6th percentile of all films
  • Gold Coast(1997)

    as Karen DiCilia

    Midcredits score: 28th percentile of all films
  • Fire Down Below(1997)

    as Sarah Kellogg

    Midcredits score: 19th percentile of all films
  • Midcredits score: 26th percentile of all films
  • Murder Live!(1997)

    as Pia Postman

    Midcredits score: 56th percentile of all films
  • King of the Hill(1997)

    Show 1 episode · as Mrs. Hanover / Pretty Student (voice)

    Midcredits score: 76th percentile of all shows
  • My Fellow Americans(1996)

    as Joanna (uncredited)

    Midcredits score: 58th percentile of all films
  • Conundrum (not in the MovieCove catalog yet)(1996)

    as Det. Rose Ekberg

  • Inflammable(1995)

    as Lt. (j.g.) Kay Dolan

    Midcredits score: 21st percentile of all films (provisional, few ratings)
  • Species(1995)

    as Dr. Laura Baker

    Midcredits score: 33rd percentile of all films
  • Bad Boys(1995)

    as Alison Sinclair

    Midcredits score: 74th percentile of all films
  • Just Looking(1995)

    as Darlene Carpenter

    Midcredits score: 5th percentile of all films
  • ER(1994)

    Show 4 episodes · as Karen Hines

    Midcredits score: 88th percentile of all shows
  • Where Are My Children?(1994)

    as Vanessa Meyer Vernon Scott

    Midcredits score: 51st percentile of all films
  • Red Eagle(1994)

    as Kate Nessen

    Midcredits score: 27th percentile of all films
  • The Cowboy Way(1994)

    as Margarette

    Midcredits score: 41st percentile of all films
  • Keys (not in the MovieCove catalog yet)(1994)

    as Maureen 'Kick' Kickasola

  • Partners(1993)

    as Georgeanne Bidwell

    Midcredits score: 19th percentile of all films (provisional, few ratings)
  • Frasier(1993)

    Show 1 episode · as Emily

    Midcredits score: 91st percentile of all shows
  • Fallen Angels (not in the MovieCove catalog yet)(1993)

    Show 1 episode · as Eve Cressy

  • Midcredits score: 43rd percentile of all films
  • Distant Cousins (not in the MovieCove catalog yet)(1993)

    as Connie

  • The Tommyknockers (not in the MovieCove catalog yet)(1993)

    Show 2 episodes · as Bobbi Anderson

  • Through the Eyes of a Killer(1992)

    as Laurie Fisher

    Midcredits score: 37th percentile of all films
  • The Larry Sanders Show(1992)

    Show 1 episode · as Susan Elliot

    Midcredits score: 93rd percentile of all shows
  • Midcredits score: 35th percentile of all films
  • Crooked Hearts(1991)

    as Jennetta

    Midcredits score: 34th percentile of all films
  • The Hidden Room (not in the MovieCove catalog yet)(1991)

    Show 1 episode · as Jane

  • Death Dreams (not in the MovieCove catalog yet)(1991)

    as Crista Westfield

  • Blind Vengeance (not in the MovieCove catalog yet)(1990)

    as Virginia Whitelaw

  • Always(1989)

    as Rachel

    Midcredits score: 53rd percentile of all films
  • After Midnight(1989)

    as Alex (segment "All Night Operator")

    Midcredits score: 31st percentile of all films
  • Peacemaker (not in the MovieCove catalog yet)(1989)

    as Mrs. Cooper

  • Tales from the Crypt(1989)

    Show 1 episode · as Vicki

    Midcredits score: 90th percentile of all shows
  • China Beach(1988)

    Show 64 episodes · as KC Koloski

    Midcredits score: 92nd percentile of all shows
  • China Beach: Pilot (not in the MovieCove catalog yet)(1988)

    as K.C. Kolowski

  • thirtysomething (not in the MovieCove catalog yet)(1987)

    Show 1 episode · Actor

  • Shell Game (not in the MovieCove catalog yet)(1987)

    Show 6 episodes · Actor

  • Matlock(1986)

    Show 1 episode · as Victoria Rollins / Laura Norwood

    Midcredits score: 58th percentile of all shows
  • Spenser: For Hire(1985)

    Show 1 episode · as Nancy Kettering

    Midcredits score: 65th percentile of all shows
  • American Playhouse (not in the MovieCove catalog yet)(1982)

    Show 1 episode · as Mrs. Cooper (segment 'Peacemaker')

  • This Week (not in the MovieCove catalog yet)(1981)

    Show 1 episode · Actor

Career shape

Star power in the 99th percentile of 239,109 people with a billed film role, over a full career of 61 titles from 1981 to 2021; peak year 2019.

Film career

19812021

Peak 2019 · their film career is on the way up. Top draw in 5 MovieCove titles. Film roles by billing, audience size and rating; 25+ votes. A show carries a single first-air date, so shows are not on the curve.

By role

only this rolewith another role
Acting61 of 61: 61 only acting, 0 with another role · typical Midcredits score52nd

By decade

1980s12 · acting1990s34 · acting2000s8 · acting2010s6 · acting2020s1 · acting

Billing

usually 4th · top billed in 6% of 17 roles
8999

Counts from TMDB across their full career, self appearances out; a title counts in every role they held on it. The ring is the typical Midcredits score (the median percentile) of the role's titles that are on MovieCove, shown from 5 scored. Billing is TMDB cast order for roles with 25+ votes, billed in the top 30; the columns are the share of top-billed roles in each era, 5-year spans from the year on the label, merged until each holds at least 5 roles.

How do Marg Helgenberger's films land?

Their typical MovieCove film has a Midcredits score in the 39th percentile, the median of all 29; across their 28 films with reception data, the typical film sits in the 38th percentile for acclaim.

Acclaim · how much people like their films

38thpercentile
Typical film, the median of 28

Approval · how many liked their films

44thpercentile
Typical film, the median of 28

Reach · how many have seen their films

77thpercentile
Typical film, the median of 28

Midcredits score across 42 titles, by percentile

  • 75th and up12
  • 50th to 74th10
  • 25th to 49th15
  • Below 25th5

Shape of the crowd

17 of their 42 titles are Crowd Pleasers.

  • Universally Loved5
  • Cult Classic4
  • Crowd Pleaser17
  • Broadly Agreed1
  • Mixed15

Reviewers score the acting 66/100 in their films, across 23 reviewed titles; fans 77, detractors 42. The element that speaks to their work as an actor.

Percentiles are each film's standing among all films on MovieCove; the typical film is the median, so one outlier cannot drag it. Percentiles and reviewer scores count the films IMDb credits them on, for now; the Midcredits score bands, the shape of the crowd and the two cards count their MovieCove titles, shows included (a show ranked among shows), appearances as themselves left out. A descriptor is the shape of a title's IMDb rating distribution against the catalog; "most divisive" needs a spread wider than half of all titles, and a card names only a principal credit: a craft role, and on a show a crew role or a run of episodes, never a courtesy credit or a one-off guest spot.

Is Marg Helgenberger's work okay for kids?

Across up to 13 MovieCove titles with content scores, violence & gore, sex & nudity, profanity and frightening / intense run heavier than most films.

Their medianMedian of all filmsMiddle 80% of their titles
Violence & Gore9 titles12–86 · median 77 · intenseheavier than most filmsMedian of all films: 44
Sex & Nudity13 titles17–72 · median 44 · moderateheavier than most filmsMedian of all films: 32
Profanity9 titles23–75 · median 59 · moderateheavier than most filmsMedian of all films: 36
Alcohol & Drugs8 titles27–48 · median 39 · moderatenear the median of all filmsMedian of all films: 33
Frightening / Intense8 titles34–89 · median 62 · intenseheavier than most filmsMedian of all films: 39

Severity 0–100 from the Content Guide. Categories with under 10 votes on a title are not counted. The band's colour is the severity of their median, named beside it.

Who does Marg Helgenberger work with?

People who share at least 2 of Marg Helgenberger's MovieCove titles, grouped by what they did on them; Peter Weller shares the most, 2.

Directors

Writers

Actors

Composers

Producers