Children's Ward (series)

Children's Ward, later known in its final two years as The Ward, was a television series which aired on ITV from 15 March 1989 to 4 May 2000. The series' demographic was aimed at older children and teenagers, and was set inside of a children's ward of the fictitious South Park Hospital or Sparky's. Russell T Davies was the producer and occasional writer of the series from 1992 to 1995.

From 1990 to 1993 and again in 1996, Judy Holt commonly appeared as Nurse Sandra Mitchell. It is through this character that Children's Ward has a connection to the Doctor Who universe. In 2005, TV: Dalek introduced the character of Adam Mitchell. The character became a companion at the end of the story, but was kicked out of the TARDIS at the end of TV: The Long Game, the very next episode. At this point, Judy Holt appeared as the character's mother. It was long speculated, and later confirmed by PROSE: The Time Lord Letters, that this was actually a cameo by Sandra Mitchell.

Davies later clarified that he considered all of his television projects to take place in "one big world", making it likely that this easter egg was meant to suggest that Children's Ward and Doctor Who have a shared universe.