In 2015, Miller co-starred in the drama The Stanford Prison Experiment and the comedy Trainwreck, before playing Credence Barebone / Aurelius Dumbledore in the Fantastic Beasts films Fantastic Beasts and Where to Find Them (2016), Fantastic Beasts: The Crimes of Grindelwald (2018), and Fantastic Beasts: The Secrets of Dumbledore (2022)