The design challenges of building Doctor Who's creepy creaturesTo play this video you need to enable JavaScript in your browser.This video can not be playedThe design challenges of building Doctor Who's creepy creaturesCloseWatch the full episode on BBC iPlayer.SubsectionCulturePublished10 MayShareclose panelShare pageCopy linkAbout sharingRelated topicsDoctor WhoFollow Doctor Whoclose panelYou are now following Doctor WhoUpdates from your News topics will appear in My News and in a collection on the News homepage.Read description