Not really. One can make an original sculpture of an actor that doesn't have an association to a particular role for example. That's a copyrighted work whether or not one or more editions are sold or simply given away. Copying that work is still an infringement of the copyright.
Without paying the actor for a license to use their likeness?.. seems to me that being indignant about 'copyright' under those circumstances is rather disingenuous, there is a reason the 'copyright' head sculpt is not of your old school's janitor, no?