Place of Birth: Fremont, Nebraska, USA
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.
| Movie | Cast | Year |
|---|---|---|
| Erin Brockovich | Donna Jensen | 2000 |
| Species II | Dr. Laura Baker | 1998 |
| In Good Company | Ann | 2004 |
| Mr. Brooks | Emma Brooks | 2007 |
| Bad Boys | Alison Sinclair | 1995 |
| Species | Dr. Laura Baker | 1995 |
| My Fellow Americans | Joanna (uncredited) | 1996 |
| The Last Time I Committed Suicide | Lizzy | 1997 |
| Columbus Day | Alice | 2008 |
| Fire Down Below | Sarah Kellogg | 1997 |
| Wonder Woman | Hera (voice) | 2009 |
| After Midnight | Alex (segment "All Night Operator") | 1989 |
| The Cowboy Way | Margarette | 1994 |
| Thanks of a Grateful Nation | Jerrilynn Folz | 1998 |
| Happy Face Murders | Jen Powell | 1999 |
| Crooked Hearts | Jennetta | 1991 |
| Through the Eyes of a Killer | Laurie Fisher | 1992 |
| Death Dreams | Crista Westfield | 1991 |
| Lethal Vows | Ellen Farris | 1999 |
| Lie Down with Lions | Kate Nessen | 1994 |
| Perfect Murder, Perfect Town: JonBenét and the City of Boulder | Patsy Ramsey | 2000 |
| Distant Cousins | Connie | 1993 |
| Conundrum | Det. Rose Ekberg | 1996 |
| Gold Coast | Karen DiCilia | 1997 |
| Blind Vengeance | Virginia Whitelaw | 1990 |
| Inflammable | Lt. (j.g.) Kay Dolan | 1995 |
| Where Are My Children? | Vanessa Meyer Vernon Scott | 1994 |
| CSI: Immortality | Catherine Willows | 2015 |
| China Beach: Pilot | K.C. Kolowski | 1988 |
| Giving Up the Ghost | Anna Hobson | 1998 |
| Almost Friends | Samantha | 2017 |
| Just Looking | Darlene Carpenter | 1995 |
| In Sickness and in Health | Mickey | 1992 |
| Keys | Maureen 'Kick' Kickasola | 1994 |
| When Love Kills: The Seduction of John Hearn | Debbie Banister | 1993 |
| Always | Rachel | 1989 |
| Murder Live! | Pia Postman | 1997 |
| This Changes Everything | Self | 2019 |
| A Dog's Journey | Hannah Montgomery | 2019 |
| Partners | Georgeanne Bidwell | 1993 | Series | Cast | Year |
| The Ellen DeGeneres Show | Self | 2003 |
| The Tony Danza Show | Self | 2004 |
| Spenser: For Hire | Nancy Kettering | 1985 |
| CSI: Crime Scene Investigation | Catherine Willows | 2000 |
| thirtysomething | 1987 | |
| China Beach | KC Koloski | 1988 |
| LIVE with Kelly and Mark | Self - Guest | 1988 |
| King of the Hill | Mrs. Hanover / Pretty Student (voice) | 1997 |
| Tales from the Crypt | Vicki | 1989 |
| This Week | 1981 | |
| The View | Self | 1997 |
| Frasier | Emily | 1993 |
| The Early Show | Self | 1999 |
| Late Night with Conan O'Brien | Self - Guest | 1993 |
| ER | Karen Hines | 1994 |
| Shell Game | 1987 | |
| Intelligence | Lillian Strand | 2014 |
| Tony Awards | Self - Presenter | 1956 |
| Under the Dome | Christine Price | 2013 |
| Intimate Portrait | Self | 1993 |
| The Tommyknockers | Bobbi Anderson | 1993 |
| Fallen Angels | Eve Cressy | 1993 |
| Matlock | Victoria Rollins / Laura Norwood | 1986 |
| CSI: Vegas | Catherine Willows | 2021 |
| Perfect Murder, Perfect Town: JonBenét and the City of Boulder | Patsy Ramsey | 2000 |
| The Price Is Right | Self | 1972 |
| RuPaul's Drag Race | Self | 2009 |
| Stars in the House | Self | 2020 |
| All Rise | Lisa Benner | 2019 |
| RuPaul's Drag Race | Self - Guest Judge | 2009 |
| RuPaul's Drag Race | Self - Judge (archive footage) | 2009 |
| Golden Globe Awards | Self - Audience Member | 1944 |
| Golden Globe Awards | Self - Nominee | 1944 |
| Golden Globe Awards | Self - Presenter | 1944 |
