strange facebook befriending

so, i have a friend request sitting here with which i don't know what to do. it's definitely NOT the person it purports to be, *snicker*, since that person is a japanese actor whom i most definitely don't know personally.

normally i would just friend right back because i don't generally care about "real" names (obviously), and i figure this has got to be somebody who knows me from somewhere, since i am here under a pseudo myself, and i can always figure it out later. i looked at their existing friends list and i only recognize one entry, and that's a very obvious pseudo (mina de malfois). i have a bit of a suspicion who it is.

i am mildly uncomfortable about someone using as their pseudo the name of another real person. even though that person is terribly unlikely to ever really be on facebook themselves, and i know that of course multiple people can share a name (though probably not a likeness at the same time; the facebooker uses a photo of the actor). maybe this is some kind of subversive stunt, but if so i'd like to know.

so, urm. i've got to think about this. what would you do?