Will Dom leave Holby, just like Donna? (Pictures: BBC)

Madge Britton (Clare Burt) has already been discovered to be the Holby City Mole, and in tonight’s episode Fletch (Alex Walkinshaw) confronts her, telling her he knows she’s one who’s been passing information to Regina Marriott (Karen Ascoe) about all the things that have gone wrong at the hospital.