At least nine regulars of the cast from Series One return in this episode, with two notable absentees: the 'Baz Samuels' and 'Clive King' characters.
Albert Bentall (Joyce's baby) is the real-life baby of Janine Duvitski (Joyce).
Whilst the woman with the baby is on the telephone to A&E the music in the background is the theme tune to the TV soap opera EastEnders (1985). This show is also produced by the BBC, the same company who make Casualty.