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.
Lofty Chiltern
Due to the on-set team of professional medical staff, Mead did not require any medical training for the role. Nurses would regularly help him with medical terminology and procedures to add realism to the scenes. He added that he found learning the terminology enjoyable and formed an interest in the show's prosthetic department. He described the show's twelve hours a day routine as "very intense". "Casualty" is Mead's first regular television role after ten years in musical theatre and he described it as "a new phase" in his career. Mead struggled to make the transition from musical theatre to television and said it was "a whole new career" for him. In addition to his work in musical theatre, Mead is a singer and producers allowed him to perform in concerts while contracted to the show.