Grant Mitchell

Grant Mitchell was a resident of Albert Square in the East End of London. Along with his brother Phil, he found Romana at the Arches, who was in there to look for the Doctor, and asked her to leave. (NOTVALID: Dimensions in Time)

The Tenth Doctor and Rose Tyler bumped into Grant, alongside Patrick Stewart and Ainsley Harriott, shortely after facing the Wire, all facing away from them. The Doctor was initially afraid, believing the Wire to have taken their faces and turned their clothes back to front, upon seeing the backs of their bald heads. (NOTVALID: Doctor Whoah! 373)

Behind the scenes
Grant Mitchell was a character on EastEnders. He appeared in Dimensions in Time, a crossover special with Doctor Who.