Is there a serial number on all toy story action figures?

The available verified sources do not provide any information about serial numbers on Toy Story action figures. Without documentation or statements from the manufacturer, we cannot confirm that all figures are stamped with a serial number. In the toy industry, serial numbers are sometimes used for quality control or tracking, but their presence varies by brand, production batch, and distributor. Therefore, based on the evidence at hand, it is safest to say that the presence of serial numbers on Toy Story action figures is not guaranteed for every figure.