While the nature of fictional characters has received much attention in the last few years within analytic philosophy, most accounts fail to grasp what distinguishes fictional characters from other fictional entities. In this paper, I propose to amend this deficiency by defining fictional characterhood. I claim that fictional characters are fictional intentional systems, a thesis that I label as FIST. After introducing FIST, I compare it to some rival definitions of fictional characters found in the literature, explaining why FIST is (...) preferable. Finally, I briefly delve into the implications of FIST for other issues related to the nature of fictional characters. (shrink)