Maisie Williams
In "The Magician's Apprentice" (2015), Clara is shown teaching English to a class, when the airborne planes stop. Mr Dunlop tells Clara there is a call from UNIT and she leaves via her motorbike. At the end of "The Woman Who Lived", Clara reveals to the Doctor that Evie (a student) got an A in a project which he helped her with. She shows a selfie with her and Evie on her phone to the Doctor; with Ashildr (Maisie Williams) in the background.