"The Empty Child" is the ninth episode of the first series of the British science fiction television programme Doctor Who, which was first broadcast on BBC One on 21 May 2005. It was directed by James Hawes, and was the first official episode written by Steven Moffat, who previously wrote the Comic Relief mini-episode "The Curse of Fatal Death" in 1999. He would later become the showrunner and main writer of Doctor Who from the fifth to tenth series. "The Empty Child" is the first of a two-part story, which continued and concluded with "The Doctor Dances", on 28 May.

Womanby Street is one of the oldest streets in Cardiff, the capital of Wales. Tracing its name back to origins within the Norse language, its original purpose was to link Cardiff Castle to its quay. In this way it became a trade hub and settling point for those incomers who made the city their home. Throughout its history the street has had several pubs, and today has several bars and clubs.