It all depends upon the facts of the particular accident. Sometimes it is the manufacturer of product, such as a gas control valve that has a safety shutoff valve that fails to operate properly. It also can be an individual such as a cosmetologist who misapplies chemicals on a customer causing chemical burns. It could also be a homeowner who is involved in some activity that causes a fire that leads to burns on a visitor to the home. If you were burned as a result of a defective product, for example, it may be possible to file suit against anyone involved in the commercial chain, from the designer and the manufacturer to the marketer of the product.