I think Rom might be the only action figure created by Parker Brothers (depends on what you think Nerf Man is). Released before it was legal for toys to have animated series, Rom had his own Marvel comic and what a comic! Much like the Mego Micronauts, the Marvel team would produce a book that would far outlast the toy itself.
I remember getting that first issue and being PUMPED to buy the ROM doll, of course, I never saw it at retail. Rom's creator has a website that gives some back story into the toy's creation, check it out here.