Marg Helgenberger

About

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...

Known for

CSI: Crime Scene InvestigationSeries • 2000FrasierSeries • 1993King of the HillSeries • 1997ERSeries • 1994American PlayhouseSeries • 1982MatlockSeries • 1986All RiseSeries • 2019Tales from the CryptSeries • 1989The Larry Sanders ShowSeries • 1992Under the DomeSeries • 2013CSI: VegasSeries • 2021thirtysomethingSeries • 1987China BeachSeries • 1988Spenser: For HireSeries • 1985Bad BoysMovie • 1995Fallen AngelsSeries • 1993Erin BrockovichMovie • 2000A Dog's JourneyMovie • 2019The Hidden RoomSeries • 1991IntelligenceSeries • 2014SpeciesMovie • 1995Species IIMovie • 1998The TommyknockersSeries • 1993Fire Down BelowMovie • 1997