 "Blink" received universal critical acclaim, with many praising the acting, the script, the level of fear and the Weeping Angels themselves. The Guardian's Stephen Brook called it a "wonderfully creepy episode" that "ultimately made sense" despite "barely featur [ing] the Doctor and Martha". David Bradley of SFX awarded "Blink" five out of five stars, saying that it could have featured any of the previous Doctors and predicted that its "timelessness" would ensure that it would "[go] down as one of the finest, scariest, cleverest Who episodes ever". IGN's Travis Fickett gave the episode 9.1 out of 10, praising the way the audience felt they had known Sally Sparrow for a while, as well as the strength of Mulligan's performance, although he noted that "all of the performances in this episode are exceptional". He concluded that, "it's difficult to believe that so much was accomplished in such a short amount of time. The story of not one, but two relationships was told, several time lines intersected and a new and rather frightening enemy was vanquished without The Doctor ever coming face to face with them". Ross Ruedinger of Slant Magazine believed that the episode was not just the best Doctor Who episode, but also a great episode of the science fiction and horror genre that could allow it to stand alone. He also praised the fear-inducing concept of the Weeping Angels as well the "tenderness of the story and the characters" which were "quite intricate given how much is going on in these 45 minutes". The Daily Telegraph named the episode one of the best of the show's entire run, noting that, while the Doctor "is somewhat on the periphery here", it "adds to the threat".
