Reggie Kray was one half of the Kray twins, the notorious gangsters who ran much of London's East End in the 1960s and became enduring figures in British crime folklore. Their story has been retold in films, books and documentaries, which keeps their names instantly recognisable to audiences who love gangster stories. Online, short clips like this one are reused less for the original scene and more as shorthand for power, reputation and a room going quiet when someone important walks in.