Marg Helgenberger

Acting

Born Nov 16, 1958

From 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.

Marg Helgenberger

Known For

Bad Boys

Species

Almost Friends

Erin Brockovich

Species II

A Dog's Journey

Always

Mr. Brooks

Wonder Woman

Fire Down Below

Filmography — Acting

Bad Boys

Species

Almost Friends

Erin Brockovich

Species II

A Dog's Journey

Always

Mr. Brooks

Wonder Woman

Fire Down Below

In Good Company

When Love Kills: The Seduction of John Hearn

My Fellow Americans

The Last Time I Committed Suicide

The Cowboy Way

Columbus Day

This Changes Everything

CSI: Immortality

Conundrum

Lethal Vows

After Midnight

Thanks of a Grateful Nation

In Sickness and in Health

Giving Up the Ghost

Crooked Hearts

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

Death Dreams

Lie Down with Lions

Just Looking

Distant Cousins

Murder Live!

Gold Coast

Through the Eyes of a Killer

Keys

Where Are My Children?

China Beach: Pilot

Inflammable

Partners

Blind Vengeance

Happy Face Murders

Peacemaker