One of the coolest things a director can do is form a group of frequent collaborators they bring back time and time again for new projects. More than, say, Spike Lee casting Denzel Washington in a handful of his joints from the last 30 years (though they're still one of the best actor-director collaborations ever), a stable of recurring actors can give a filmmaker's output a sort of community theater vibe. That's to say, their work features a core group of people dressing up in different costumes and appearing on various sets, over and over again. Think of Mike Flanagan...