Seeing as shooting is set to begin next month on Harald Zwart’s adaptation of Cassandra Clare’s smash-hit YA fantasy novel “City of Bones,” it’s starting to become crunch time as far as putting together a cast is concerned. When we made our last casting update, pretty much every major role had been filled other than that of Luke Garroway, the teenage protagonist’s surrogate father-figure, and Valentine Morgenstern, the primary villain of the story who has many and sometimes mysterious ties to the pasts of the protagonists. Well, worry not, fans of demon-killing Shadowhunters, because it looks like the film is going to be able to fill all of its big roles with weeks to spare. First off, Luke Garroway: he’’s the gruff, flannel shirt wearing fellow that spends a lot of time hanging around with the protagonist Clary’s (Lily Collins) mother (Lena Headey). Though I can’t find any place where this casting was actually announced, Irish actor Aidan Turner is now listed as playing the role. He’s probably best known for his role on the BBC show Being Human, which is also heavily concerned with creatures of the night, so he should feel right at home dealing with mystical and dangerous things.