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.
Sian Blake
Blake was born in Walthamstow, London, in 1972, and attended the Guildford School of Acting. The youngest of three children, her father was Jamaican. Her parents divorced when she was six, and her father died from a heart attack when she was eighteen. Adopting the stage name Syan Blake, she landed her first acting role in 1994, playing a bulimia patient in that year's Christmas episode of "Casualty".