I say 'No!' to John Simm's hair.
No, no and thrice no!
Alright, so it's a costume drama and I suppose some leeway should be granted. But I just think back to his glorious short back 'n' sides in "Life on Mars" and in "Doctor Who" and I can't help but shed a tear for the terrible mess of a hair disaster he's wearing in this one.
Given this drama is not supposed to be based on facts, I'd like the wardrobe department to have dressed him up as a time travelling copper from the seventies. It would have been groundbreakingly anachronistic and would have served to be the start of many happy discussions on this IMDb page, so there's two advantages. I can't think of any disadvantages.
I'm going to be putting my foot through my telly, and I'll be sending Channel 4 the bill!
Who's with me?