The scene were he joins the band at the Travel Tavern and starts to sing The Carpenters "Close to you" in a key that's much to high.
His "Big plate scam"...
The stalker, Michael...
The list of brilliance is varied and massive. The pathos is sometimes gut-wrenching but the genius of Coogan's performace and Armando Ianucci's superlative writing is peerless.