|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.|
Catherine Russell (born 17 April 1965) is an English actress. She portrays Serena Campbell on Holby City since 2012. Russell took a break from Holby in 2017 but will be reprising her role in late 2017.