Malcolm Tucker is a character played by Peter Capaldi on a British series called The Thick of It, which is very similar in tone and execution to HBO's Veep. Both series are created and co-written by the same man, Armando Iannucci, who's very clearly a master at creating artful vulgarity. Somebody, somewhere on the internet, created these panels which I happen to find endlessly amusing, so I'm reposting them here.
At the moment, The Thick of It is nearly impossible to find if you live in the U.S., but a couple years ago Iannucci refashioned the concept into a movie called In The Loop, which is very easy to get your hands on.
Updated on 08/04/2013!: So, not only has Peter Capaldi been cast as the Doctor (a casting decision clearly sent down by the gods of comedy and tragedy), but also, The Thick of It hits R1 DVD on Tuesday, the 6th of August, in a big, fat complete series box set (yes, it includes the two Christmas specials in addition to the four seasons and loads of extras).
Also, check out my new piece for Vulture, "Why Peter Capaldi Is the Ideal 12th Doctor" by clicking here.