Hello, I Must Be Going (Casualty)

"Hello, I Must Be Going" is the thirty-fourth episode of the thirtieth series of the British medical drama television series Casualty, and the 995th episode of the overall series. The episode was written by Jeff Povey and directed by Steve Hughes, and premiered on BBC One on 7 May 2016. The episode features the departure of established character Zoe Hanna (Sunetra Sarker), an ED consultant, who left the show after nine years. Sarker's departure was kept secret until transmission in order to surprise viewers. Producers were upset when Sarker announced her decision to leave, but ensured writers created a good story for the character.

The episode concluded Zoe's relationship with the porter Max Walker (Jamie Davis), which Sarker labelled as "bittersweet". It also featured the first appearance of Elle Gardner (Jaye Griffiths), an ED consultant, who was held at knifepoint in a hostage situation during the episode. "Hello, I Must Be Going" received positive reviews from critics, who praised Zoe's exit and Elle's introduction. Alison Graham, writing for the Radio Times, labelled the episode "valedictory".