Helgenberger is a cast member of the police drama series "CSI." Rosenberg is the president of the Screen Actors Guild.
People.com said the actress cited irreconcilable differences as the reason for the breakup and requested spousal support. She also asked the court not to give her soon-to-be-ex-husband any.
The couple, who have an adult son together, separated four months ago.
Celebrity Couples of 2014 [PHOTOS]