"Avoidable Harm" is the 972nd episode of Casualty and the 11th episode of the 30th series. It was preceded by "Best Served Cold" and followed by "Strangers". This episode marked the final appearance of Alicia Munroe, played by Chelsea Halfpenny, after only eight appearances although she later returned in 2016. It was directed by Jo Johnson and written by Matthew Barry. Although the episode was Charlie centric, the events primarily revolved around Alicia and her departure.