Doctor Who: Modern Era Davros (2008-15)
NOTE: there are SPOILERS for a number of Modern Era Dr Who stories below this paragraph. It would be advisable not to read any further if you're not okay with that.
Following on from the Classic Era Davros (1975-88) post, some words on his appearances in the Modern era. He was mentioned a couple of times during Series 01 and 03, but he didn't actually appear until later, in a noteworthy Series 04 adventure.
I won't mention the title of the episode in this introductory paragraph, for anyone that would prefer to enjoy the surprise reveal during a first watch-through. Personally, I feel that's the best way to experience the story, but I'll need to name it if I'm to write about it, so, as already mentioned, SPOLERS below the cut!