 Diveney trained at the Royal Welsh College of Music and Drama.John Sullivan cast Diveney in the role of Beth in "The Green Green Grass" where she played opposite Jack Doolan and appeared in Series 1-3.She went on to appear in "Cleansed" directed by Sean Holmes at the Arcola Theatre and in Michael Grandage's production of "John Gabriel Borkman" for the Donmar Warehouse where Ian McDiarmid and Penelope Wilton headed the cast.