Casualty (TV series) staff and patients of the hospital's Accident and Emergency Department. The show has very few ties to its sister programme "Holby City", which began as a spin-off from "Casualty" in 1999, set in the same hospital. "Casualty" is shown weekly on a Saturday evening, which has been its time slot since the early 1990s. "Casualty"s exterior shots were mainly filmed outside the Ashley Down Centre in Bristol from 1986 until 2002 when they moved to the centre of Bristol for just over nine years. In 2011, "Casualty" celebrated its 25th anniversary; following that, for the Bristol finale, they filmed the
Characters of Holby City the characters gathered together in the hospital bar at the end of the episode, and raised a toast "To the one and only Sandy!" Estelle "Essie" Harrison, played by Kaye Wragg, made her first appearance in the sixteenth series episode "My Name Is Joe", which aired on 6 May 2014. Essie is a Staff Nurse at Holby City Hospital. She came to the hospital with her dying grandfather and she started a relationship with Sacha Levy (Bob Barrett). She later moved to Germany after her grandfather died. In October 2014, it was announced that Wragg would be returning to "Holby