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Marg Helgenberger

Also known as Mary Marg Helgenberger

Born
Nov 16, 1958age 67
height
5'6" (or 167 cm)
body type
Average
nationality
American

Career

Active 1977 – present

Biography

About Marg Helgenberger

Edited by the community

Red hair and blue eyes, Marg Helgenberger stands 5'6" with an average build and measurements of 36-24-36. The American actress from Fremont, Nebraska, was born on Sunday, November 16, 1958. She has been active in the industry since 1977, starting around age 18, and has worked for nearly five decades.

Helgenberger first gained attention as Siobhan Ryan on the daytime soap opera Ryan's Hope from 1982 to 1986. She later earned an Emmy Award for her role as K.C. Koloski in China Beach. Most know her as Catherine Willows in CSI: Crime Scene Investigation, a role she played for many years and reprised in the sequel CSI: Vegas. She also appeared in Under the Dome and Intelligence, as well as films like Species, Erin Brockovich, and Mr. Brooks.

Her real, natural bust and topless-only nudity in performances have been part of her public profile. She remains active in acting and maintains a presence on social media.

Record

Profile details

Personal

Years Active
1977-present (started around 18 years old; 49 years active)
Birthplace
Fremont, Nebraska, United States
Ethnicity
Caucasian

Body

Hair Color
Red
Eye Color
Blue
Weight
120 lbs (or 54 kg)
Measurements
36–24–36 (B–W–H) · WHR 0.67
Bra/Cup Size
36C show conversions - UK: 36C, EU: 80C, AU: 14C, JP: 80C

Performances

Solo
Nudity (Topless Only)

Extra

Instagram Followers
89k (as of July 2026)

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Frequently asked

How did Marg Helgenberger's career begin?

She began acting in 1977, around age 18, and first came to attention with her role on Ryan's Hope from 1982 to 1986.

What are some of her notable roles?

She is known for Catherine Willows in CSI, K.C. Koloski in China Beach, and appearances in films like Species and Erin Brockovich.

Has she received any major awards?

Yes, she won an Emmy Award for her role in China Beach.

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