Dot Branning

Dot Branning was an elderly British woman who knew the Doctor. While the Eleventh Doctor was trying to drop off Dermot O'Leary at the National Television Awards, Dermot stepped out of the TARDIS into Albert Square where he was met by Dot. He was shocked to find that she knew the Doctor. Dot explained to him that he was never out of her laundrette. (National Television Awards Sketch 2011)

Behind the scenes

 * The character was never named in the sketch, but she's unmistakably Dot Branning.

Trivia

 * The reason that Dot could remember the Doctor could be because of his appearance in Dimensions in Time, wich was a crossover with EastEnders.