Doctor Who: 10 Cheapest NuWho Enemies

The Matt Smith era had its fair share of quiet adversaries. The Silence operated in the shadows. The Weeping Angels didn't say much... and then there were the Headless Monks. Appearing as Jedi-style figures in Series 6's A Good Man Goes To War, they were an army of few words. None in fact, as they had no mouths.

Somewhat craftily, the lack of a skull meant all that was required were a bunch of monastic robes and the ability to walk in a straight line. When the true horror of the religious de-nogginizers presented itself, the viewer saw something not unlike the end of a giant sausage. In fact, the team could well have draped a miniature hood over a packet of Walls!

In an action-packed first half finale stuffed to the gills with creatures, a budget-bypassing element was essential, and the Monks abandoned their sacred texts in favour of helping the Beeb balance its books instead. Not so much A Good Man Goes To War as A Good Producer Goes To Poundland.