In 1947, he starred as a professor in Vernon Sewell's comedy "The Ghosts of Berkeley Square". The film, an adaptation of the novel "No Nightingales" by Caryl Brahms and S. J. Simon, was inspired by the reputation of the property at 50 Berkeley Square as "the most haunted house in London", and co-starred Robert Morley and Felix Aylmer. That year, Miller also portrayed Dr. Hans Tautz in Anthony Kimmins' drama "Mine Own Executioner" opposite Burgess Meredith, Dulcie Gray and Michael Shepley. "Mine Own Executioner" was entered into the 1947 Cannes Film Festival.