The only time I've ever seen "The Scottish Play" in production was when I was in university. (My wife - then girlfriend - was on her first university show as one of the costume assistants and the blood wrangler.)
It was, in the director's phrasing, a "black, white, and red" show - everyone in black, a stage of raw white burlap, and a lot of fake blood. Every time someone was killed in the play, especially when offstage, a pot of blood up in the rafters tipped and spilled a fair measure of blood in the centre of the stage. I can't recall if the accounts of rebels put to death warranted blood or not, but you've got the king, his bodyguards, and Banquo to spur on the bleeding.
And then you get to this scene, and for the second witch's summoning, she drops to the stage on her knees, whips out a knife, and draws the blade through the bloody patch. Up from the trapdoor beneath comes the director's daughter, thoroughly daubed in blood and intoning these words. The imagery is perfect if you know how the play ends. (Try not to spoiler anyone who's not read it, okay?)
All you need now is for a time-travelling eccentric chap in a tall blue box to show up and start interrupting proceedings with a "sonic" something-or-other! :D
Hard as it may be to believe, but I've never seen more than five consecutive minutes of "Doctor Who" in my life. I really should have gotten in on it back in '05 when it started up again. Someday...
Well, that basically means you could throw out anything that's exactly like what the Doctor would do, and do a customized version of him that suits your plotlines a lot more! ;)
I'm happy to live in a world where "Blood Wrangler" can be someone's job title. Sure, there are a lot of problems in the world, but this puts me in a warm, happy place.
@BV - I can imagine few things more challenging and difficult than to present one's impression of a profoundly fannish cult (in North America, anyhow) phenomenon which one knows little more than "TARDIS", "Exterminate!", and the clip with William Shakespeare hitting on the Doctor. Still, could be fun!
@BOTD - There's another backstage role for your Friday strips, hm? I can't recall if that was the exact title or not, but the techies did have fun re-vamping their job titles. The best ever was "props dominatrix" instead of "props mistress."