 Marcel is best known for her role as Jac Naylor, consultant cardiothoracic surgeon lead in the BBC drama series "Holby City", a role she has also played in sister show "Casualty".She is also the daughter of television director Terry Marcel and sister of writer and actress Kelly Marcel.Marcel describes herself as being from a 'dramatic' family, and she had her first job at the age of three as a fairy in "A Midsummer Nights Dream" at the National Theatre.