|This article is not part of the Holby universe.|
|This article covers a subject that is part of the real world, and thus should not be taken as a part of the Holby universe.|
Rosie Marcel (born 6 May 1977) is an English actress. She is best known for her portrayal of Jac Naylor on Holby City since 2005. She made a guest appearance as the character on Casualty in February 2016.