Throughout its 12-season primetime run, Fox’s procedural drama “Bones” regularly ranked among the goriest shows on television. It just as regularly ranked among the silliest, too, with creator Hart Hanson and company taking obvious pleasure in making “Bones” a series one couldn’t easily peg down to one central genre. And fans of the long-running series would likely be happy to tell you that seriocomic dichotomy is exactly what elevated “Bones” above many of its network contemporaries. It was, naturally, the cast of “Bones” who were tasked with towing that razor-thin line between comedy and drama from week to week.