* Nice to see Liu coming out of her shell more. And both their wardrobes are fascinating. * Like Christopher, loved the scene in Bell's apt where he asked her to 'complete' him . Very nicely done. And nice to see Bell get a bit more character development. * Hope Holmes Snr remains a mystery and off-screen * As others mentioned, Rees seems a wasted guest spot, so also like idea he could be Mycroft. * Re: BC as Moriarty, another fun one could be Jude Law, as he and Miller also have history . Or Sean Pertwee? Wonder if any actors have played both Holmes or Watson and Moriarty? (too lazy to google). Also like the Hugh Laurie suggestion someone made. Would be nice to see him play 'bad'.