Anyone who is at fault or negligent for causing your injury can be held liable, depending on the circumstances involved. In some cases, there may be multiple parties who can be named as defendants in a personal injury claim. For example, in a trucking accident, the commercial truck driver who caused an accident and the trucking company they work for might be to blame, or a manufacturer if the truck or its parts were defective and caused the crash. We want to find all responsible parties, as they all may have insurance and assets.