
Irene Adler: Do you know the big problem with a disguise, Mr. Holmes? However hard you try, it's always a self-portrait.
Sherlock: You think I'm a vicar with a bleeding face?
Irene Adler: No, I think you're damaged, delusional and believe in a higher power. In your case it's yourself.
~Sherlock Season 2: A Scandal in Belgravia
According to Guinness World Records, Sherlock Holmes is the single most portrayed literary human character ever. There’s just something about this middle-aged white bloke in a deer-stalker that awakens the fanatic in a person. In modern times, we tend to shape him in the image of our own cultural mores (as we have Doctor Who). Watching the representative Holmes of each decade is almost like an automatic acid test of the zeitgeist. The latest two, in particular, highlight our modern take on heroes.