Acting · Fremont, Nebraska, USA · Born November 16, 1958
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.
TVCSI: Vegas
2021
as Catherine Willows
TVStars in the House
2020
as Self
TVAll Rise
2019
as Lisa Benner
MovieThis Changes Everything
2019
as Self
MovieA Dog's Journey
2019
as Hannah Montgomery
MovieAlmost Friends
2017
as Samantha
MovieCSI: Immortality
2015
as Catherine Willows
TVIntelligence
2014
as Lillian Strand
TVUnder the Dome
2013
as Christine Price
TVThe Talk
2010
as Self
MovieWonder Woman
2009
as Hera (voice)
TVRuPaul's Drag Race
2009
as Self - Guest Judge
MovieColumbus Day
2008
as Alice
MovieMr. Brooks
2007
as Emma Brooks
MovieIn Good Company
2004
as Ann
The Tony Danza Show
2004
as Self
TVThe Ellen DeGeneres Show
2003
as Self
TVCSI: Crime Scene Investigation
2000
as Catherine Willows
MovieErin Brockovich
2000
as Donna Jensen
MoviePerfect Murder, Perfect Town: JonBenét and the City of Boulder
2000
as Patsy Ramsey
TVPerfect Murder, Perfect Town
2000
as Patsy Ramsey
TVThe Early Show
1999
as Self
MovieLethal Vows
1999
as Ellen Farris
MovieHappy Face Murders
1999
as Jen Powell
MovieGiving Up the Ghost
1998
as Anna Hobson
MovieThanks of a Grateful Nation
1998
as Jerrilynn Folz
MovieSpecies II
1998
as Dr. Laura Baker
MovieGold Coast
1997
as Karen DiCilia
MovieFire Down Below
1997
as Sarah Kellogg
TVThe View
1997
as Self
MovieThe Last Time I Committed Suicide
1997
as Lizzy
MovieMurder Live!
1997
as Pia Postman
TVKing of the Hill
1997
as Mrs. Hanover / Pretty Student (voice)
MovieMy Fellow Americans
1996
as Joanna (uncredited)
MovieConundrum
1996
as Det. Rose Ekberg
MovieInflammable
1995
as Lt. (j.g.) Kay Dolan
MovieSpecies
1995
as Dr. Laura Baker
MovieBad Boys
1995
as Alison Sinclair
MovieJust Looking
1995
as Darlene Carpenter
TVER
1994
as Karen Hines
MovieWhere Are My Children?
1994
as Vanessa Meyer Vernon Scott
MovieLie Down with Lions
1994
as Kate Nessen
MovieThe Cowboy Way
1994
as Margarette
MovieKeys
1994
as Maureen 'Kick' Kickasola
TVIntimate Portrait
1993
as Self
Partners
1993
as Georgeanne Bidwell
TVFrasier
1993
as Emily
TVLate Night with Conan O'Brien
1993
as Self - Guest
TVFallen Angels
1993
as Eve Cressy
MovieWhen Love Kills: The Seduction of John Hearn
1993
as Debbie Banister
MovieDistant Cousins
1993
as Connie
TVThe Tommyknockers
1993
as Bobbi Anderson
MovieThrough the Eyes of a Killer
1992
as Laurie Fisher
TVThe Larry Sanders Show
1992
as Susan Elliot
MovieIn Sickness and in Health
1992
as Mickey
MovieCrooked Hearts
1991
as Jennetta
TVThe Hidden Room
1991
as Jane
MovieDeath Dreams
1991
as Crista Westfield
MovieBlind Vengeance
1990
as Virginia Whitelaw
MovieAlways
1989
as Rachel
MovieAfter Midnight
1989
as Alex (segment "All Night Operator")
MoviePeacemaker
1989
as Mrs. Cooper
TVTales from the Crypt
1989
as Vicki
TVLIVE with Kelly and Mark
1988
as Self - Guest
MovieChina Beach: Pilot
1988
as K.C. Kolowski
TVChina Beach
1988
as KC Koloski
TVthirtysomething
1987
Shell Game
1987
TVMatlock
1986
as Victoria Rollins / Laura Norwood
TVSpenser: For Hire
1985
as Nancy Kettering
TVAmerican Playhouse
1982
as Mrs. Cooper (segment 'Peacemaker')
TVThis Week
1981
TVPeople's Choice Awards
1975
as Self - Presenter
TVThe Price Is Right
1972
as Self
TVTony Awards
1956
as Self - Presenter
TVGolden Globe Awards
1944
as Self - Audience Member
