Rosie Ellen Celine Marcel (born 6th May 1977) is an English actress. She was born in Roehampton, London. Marcel is best known for her role as Jac Naylor, consultant cardiothoracic surgeon 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.
Rosie 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. In 1985 she appeared in Bergerac as an abducted child, Michelle. In November 2005, Marcel joined Holby as Jac Naylor. Prior to this she appeared in over twenty episodes of The Bill, in which her character, Louise Larson had an affair with Sergeant Dale Smith.
Rosie's mother, Lindsey Brook was an actress and her father, Terry Marcel, is a television director. Her older sister Kelly is a writer and actress who has appeared in both Holby City and The Bill, but is now best known as the writer and executive producer of the television series Terra Nova.
When she was twenty years old, Rosie was diagnosed with endometriosis, and it was also discovered that she had a blood clotting disorder: "I was bleeding for about four months then I passed out in the shower and had to be rushed to hospital for an emergency blood transfusion. The doctors told me I'd almost bled to death and further tests revealed I had a blood clotting problem, the female form of haemophilia." Six years later she suffered further problems when she developed the rare condition Behcet's disease, an inflammatory disease in which the white blood cells attack healthy cells.
The disease left her almost bed-bound for two years until she was seen by an immunologist at St Bartholomew’s Hospital in London, who diagnosed the condition and put her on immuno-suppressants. During the two-year period, she was unable to walk unaided for approximately twelve months, instead relying on the use of two walking sticks. In 2008, Rosie was diagnosed with cervical cancer. She discovered that the disease had advanced to her pelvis and she had laser therapy to destroy the cancerous cells while continuing to film Holby.
Rosie has a black belt in karate, which she mentioned when she revealed that she would like to be a stuntwoman; "I'd love the physical challenge of doing stunts. I went to a stuntman's ball with dad when I was 17 and I've been fascinated ever since. I'm a black-belt in karate and I love water-skiing. I also love bungee -jumping, which I could put to good use. I'm tougher than I look."