This article covers a real-world subject which should not be taken as part of the Holby universe.
Rosie Marcel (born 6 May 1977) has portrayed Jac Naylor in Holby City since the 2005 episode "Bird on a Wire".
She also portrayed Jac in an episode of HolbyBlue in 2008 and in five episodes of Casualty between 2016 and 2019, Stella and Dorothea Mikus in the Casualty episodes "United We Fall" and "Chain Reactions" respectively, and Elinor Morton in the Holby City episode "Past Caring".