See all Marg Helgenberger's marriages, divorces, hookups, break ups, affairs, and dating relationships plus celebrity photos, latest Marg Helgenberger news, gossip, and biography. Marg Helgenberger is currently dating Name Unknown - Marg Helgenberger. She has been in two celebrity relationships averaging approximately 14.1 years each. Her only marriage lasted 20.2 years.