When you think about how many monsters are created for each new series of Doctor Who, you start to realise how difficult it is to make one that leaves a lasting impact on the show - and on pop-culture in general.
The vast majority of villains the Doctor faces are never seen or heard from again, and it's rare that a monster proves popular enough (or brilliant enough) to warrant bringing them back for an encore battle.
In terms of villains created during the modern era of the show, the likes of the Silence, the Judoon, and Lady Cassandra have been brought back for another round, but without question, the biggest bad guy success story of Doctor Who's last fifteen years is the Weeping Angels, who have now cemented themselves alongside the Daleks and the Cybermen as an iconic and all-time great Doctor Who villain.
"Don't blink. Blink and you're dead." Ever since David Tennant's Tenth Doctor uttered those chilling words in Steven Moffat's 2007 episode Blink, the writer's statuesque assassins have become a famous part of the Doctor Who universe, and so, join us as we look at some of the what-ifs, hidden abilities, and behind-the-scenes stories surrounding the fearsome Weeping Angels.