Duh, i forgot i've seen the Hogfather and League of Gentlemen's Apocalypse, too. Funny, that last one. His Hogfather part was brief at the beginning, Lord Downey, but the League of Gentlemen was hysterical. He was his typical panto OTT megalomaniacal villain self, and it worked out very well indeed.

Just like it works in Nebulous, versus Mark Gatiss, omg. Superb villainy :)