Kellog's the most developed character out of anyone (including SS) in fo4, but then again, that's not a fucking huge leap and bound, more like a step up the stairs and saying "Welp, I tried". The fact he's not a companion is fucking idiotic, since I'm sure most players would probably be fond of him and his wastelander experience, someone who's very neutral and shows both sides of the coin. If only they didn't hamstring him to a terrible plot of "hurr I kill ur wief/huzbend durr", which for someone as experienced as him, living for so fucking long as an expert mercenary, only makes the entire scene of him killing SS's wife/husband even more idiotic than it was before.