Campaldi or Stalker 12 is a short-lived meme that spawned on January the 20th, 2016. A PNG of the 12th Doctor holding a camcorder from The Quasimodo Who Died is Photoshopped onto different backgrounds. This meme's core premise is very similar in nature to Pedo Tennant, except it's done mostly to pictures of Jenna Coleman, rather than children.
The Reappearance of Campaldi
In the first episode of Series Tennant, Doctor Who and the Puddle of Death the Doctor regenerates into Campaldi and takes creepy pictures of asBill's Mother and then hides them in her house for her foster mother to find, seriously WTF.