What is Marg Helgenberger's net worth and salary? Marg Helgenberger is an American actress who has a net worth of $35 million. Marg Helgenberger is probably best known for her role as Catherine Willows on "CSI: Crime Scene Investigation." She starred in 264 episodes of the series between 2000 and 2012, then again in 2013 and 2015. Marg Helgenberger CSI Salary What was Marg Helgenberger's sa...

William Petersen net worth and salary: William Petersen is an American actor and producer who has a net worth of $50 million. Petersen is best-known for starring as Gil Grissom on the CBS series "CSI: Crime Scene Investigation."