Characters from Holby City such as Guy Self, Henrik Hanssen, Jac Naylor and Xavier "Zav" Duval have made guest appearances in Casualty. In addition, Adrian "Fletch" Fletcher was previously a main character on Casualty but transferred to Holby City. This then happened again but with former main character Lofty.
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.