This was the first episode to be filmed in the new studio set in Cardiff, after production moved from Bristol where it had been based from the beginning until now. It was also the first episode to be filmed in high definition (HD).
In the rebuilt A&E department there is a ward called Geraint Morris Ward. This is named after Geraint Morris (1941-1997) who produced Casualty (1986) from 1986-1993.
Debut of Oliver Coleman as Tom Kent.