
Place of Birth:
Fremont, Nebraska, USA
Date of Birth:
11/16/1958
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.

Erin Brockovich

Species II

In Good Company

Mr. Brooks

Bad Boys

Species

My Fellow Americans

The Last Time I Committed Suicide

Columbus Day

Fire Down Below

Wonder Woman

After Midnight

The Cowboy Way

Thanks of a Grateful Nation

Happy Face Murders

Crooked Hearts

Through the Eyes of a Killer

Death Dreams

Lethal Vows

Lie Down with Lions

Perfect Murder, Perfect Town: JonBenét and the City of Boulder

Distant Cousins

Conundrum

Gold Coast

Blind Vengeance

Inflammable

Where Are My Children?

CSI: Immortality

China Beach: Pilot

Giving Up the Ghost

Almost Friends

Just Looking

In Sickness and in Health

Keys

When Love Kills: The Seduction of John Hearn

Always

Murder Live!

This Changes Everything

A Dog's Journey
Partners

Peacemaker