Peter Baynham - excellent comedy writer
I've always liked Peter Baynham ever since he appeared in The Friday Night Armistice with Armando Ianucci and David Schneider. I didn't realise at the time that he actually wrote a lot of Steve Coogan, Chris Morris's and Armando Ianucci's material, also Big Train, Smack the Pony, and later a lot of Sacha's stuff.
Yes Grimsby is pretty extreme and gross in places, but at least there's a decent amount of wit and intelligence behind it. Compare that with something like The Boss which is just absolute pointless tripe.
Keep an eye out for Baynham's cameo as the traffic warden, I doubt not even 1% of viewers will realise the significance of this guy's influence on comedy or notice his cameo.