Adaptation Displacement: Most of the cast originated in a couple of stage plays, Garth Marenghi's Fright Knight and Garth Marenghi's Netherhead, performed at the Edinburgh Festival Fringe in 2000 and 2001 respectively. The fact that it was Edinburgh makes things ten times better.
During "Scotch Mist" Dagless tries to make amends with the Scottish people he offended years ago by explaining he didn't like being in Glasgow as he apologises he comes off as even more bigoted. And as the Scottish people talk in plain English, the show then adds subtitles to their lines as if they were speaking incomprehensible gibberish.
The eyeball monster raping a man with a giant pixelated penis, and impregnating him.
Matt Berry plays Dr. Sanchez, who at one point thinks about how he wishes he could get the ladies like Dagless (Marenghi's character)—his accent, however, makes it sound like he's saying "Douglas". Funny enough, Douglas actually is the name of one of Matt Berry's later roles.
In one of the DVD extras, Dean Learner, played by Richard Ayoade, laments how many great shows are gone, one being The Crystal Maze. Not only has that show been revived, but Richard now hosts it!
Nightmare Fuel: It may be because of its somewhat fake feel, but some of the content of the series manages to be genuinely terrifying in spite of its intentional hokiness.
One particular standout is Liz's "Black Hollow Ghost Eyes" in the first episode. They are the only part of the entire series not to suffer from Special Effects Failure, and are fairly shocking as a result. Even Dagget gives some genuine advice about not doing that in the ward.
Some of the interviews with Dean Learner are pretty disturbing, since he's all but stated to be a serial killer.
Wangst: Much hay is made about Dagless being a 'brilliant yet troubled doctor'. Given the nature of the show and the quality of the writing, this usually translates to angsty, over-the-top brooding about ill-defined and ludicrous things.
Dag found out Liz was behind the flying objects using telekinetic powers in a berserk rage. You'd Think: He'd try to talk her down from hurting everyone. Instead: He tells her to close her legs because he can see up her skirt and gets a fire extinguisher to the face for it.
The Woobie: Madeleine Wool, Liz's in-universe actor, thanks to the extremely misogynistic script, where she plays a stereotypical, hysterical, ditzyMenstrual Menace, despite having ostensibly been to "Harvard College, Yale." Madeleine herself is "missing, presumed dead, with the presumption heavily on dead." It's implied Dean Learner killed her.