Marg Helgenberger

Marg Helgenberger is an American film and television actress. Helgenberger can currently be seen on the hit CBS television series CSI, where she portrays Catherine Willows. Helgenberger's other acting credits include China Beach, Mr. Brooks and Ryan's Hope.

In March 2009, Helgenberger cited irreconcilable differences as she filed for divorce from her husband of 19 years, Screen Actors Guild President Alan Rosenberg.EW: Helgenberger Files for Divorce (March 25, 2009) According to People magazine, the couple had separated in December 2008. They have one 18-year-old son together.People: Marg Helgenberger and Husband Separate After 19 Years (December 1, 2008)

Before becoming an actress, Helgenberger was a weather girl on her local television station's nightly news show. It was after taking part in the play A Streetcar Named Desire that she realized she wanted to act. She won her first professional acting role in 1982, playing Siobhan Ryan Novak on the soap opera Ryan's Hope.

• 1982: Siobhan Ryan Novak on Ryan's Hope
• 1988: Karen Charlene 'K.C.' Koloski on China Beach
• 1993: Bobby Anderson on The Tommyknockers
• 1995: Dr. Laura Baker on Species
• 2000: Donna Jensen in Erin Brockovich
• 2000-present: Catherine Willows on CSI
• 2007: Mrs. Emma Brooks in Mr. Brooks
• 2008: Alice in Columbus Day

• Note: The IMDb links in this timeline have pop-ups.

• 1958: Born

• 1982-1985: Ryan's Hope - IMDb Listing

• 1987: Shell Game - IMDb Listing

• 1988-1991: China Beach - IMDb Listing

• 1995: Bad Boys - IMDb Listing

• 2000: Erin Brockovich - IMDb Listing

• 2000-Present: CSI - IMDb Listing

• 2007: Mr. Brooks - IMDb Listing

• 2008: Columbus Day - IMDb Listing