Marg Helgenberger was born on November 16, 1958 in Fremont, Nebraska.

Alan Rosenberg and Marg Helgenberger were married on September 9, 1989 together they have one son. Alan is also an actor and has been in one episode of Marg Helgenberger's hit TV series CSI: CRIME SCENE INVESTIGATION, he also had a uncredited role with his wife in the made for TV movie THE TOMMYKNOCKERS. Alan Rosenberg has been on several other TV series including L.A. LAW, CYBILL and CHICAGO HOPE.

Co-Starring with Julia Roberts, in ERIN BROCKOVICH, which was a true story about chemical exposure. Marg Helgenberger played one of the exposure victims in this hit movie.

Most recently Marg Helgenberger has been playing Catherine Willows on the hit TV series CSI: CRIME SCENE INVESTIGATION. Marg was been part of this cast since the pilot episode in 2000 she is lucky to work with a great group including William L. Petersen, Gary Dourdan, George Eads Paul Guilfoyle and Jorja Fox.

Marg Helgenberger has made three pilot episodes including CSI: CRIME SCENE INVESTIGATION, CSI MIAMI, and PARTNERS.

On the very successful TV series ER, Marg Helgenberger played George Clooney's love interest in a brief but reaccurring role.

A great role for Marg Helgenberger was first reconginzed in 1995, she played Dr. Laura Baker in the movie SPECIES. So it was no surprise in 1998 Marg reprised her role in SPECIES II.

With just a few uncredited roles Marg was in MY FELLOW AMERICANS and TOOTSIE.

Marg Helgenberger's other notable credits include...

COLUMBUS DAY (2008)

MR. BROOKS (2007)

IN GOOD COMPANY (2004)

ERIN BROCKOVICH (2000)

SPECIES II (1998)
FIRE DOWN BELOW (1997)
THE LAST TIME I COMMITTED SUICIDE (1997)
MY FELLOW AMERICANS (1996)

SPECIES (1995)
BAD BOYS (1995)
JUST LOOKING (1995)

THE COWBOY WAY (1994)
BLIND VENGEANCE (1994)
DISTANT COUSINS (1993)

CROOKED HEARTS (1991)

ALWAYS (1989)
AFTER MIDNIGHT (1989)