Chelsea Halfpenny
Halfpenny's professional acting career began in 2004 when she appeared in "Casualty" episode ""What Parents Do"", playing an eleven-year-old girl called Karine.
Characters of Casualty
Lily Chao, played by Crystal Yu, is a registrar who first appeared on 3 August 2013. Lily had been through several years training from her arrival until August 2015. The BBC have described Lily as an intelligent, logical, high-achiever who comes from a hard-working family that like to boast about their doctor daughter, but have never really told her they are proud of her. In 2014, series producer Erika Hossington spoke to "Digital Spy" about a series of standalone episodes the show would produce, revealing that the first standalone would feature Lily, "The first one is a murder mystery and the character it features is Lily. That's been written by Jeff Povey. It's a great episode and it's all set at night. The hospital is empty, so it feels like a very ghostly place and that really feeds into the story that we're telling. It's brilliant and it feels very different."