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Susie Mercier is a former receptionist who worked at Holby City Hospital until December 1987.
On 6 September 1986, following a gas leakage at East Docks, Susie helped porter Kuba Trzcinski locate the files of a former patient who had identical symptoms to the casualties being brought in; this helped Kuba identify the gas as parathion. (CAS: "Gas")
Behind the scenes
Debbie Roza portrayed Susie in Casualty from its inception in September 1986 until December 1987.