Katharine O'DonnellyActingIMDb BiographyKatharine O'Donnelly is an actress, known for Mary Queen of Scots (2018), The Head (2020) and Clique (2017).Acting · 5TV★ 8.5Outlander: Blood of My Blood2025TV★ 7.1The Head2020MOVIE★ 6.6Mary Queen of Scots2018TV★ 6.3Clique2017MOVIEOutside—
