Henry Mullius

Henry Mullius spent his days backstage at London theaters, where he snapped candid photos of actors between scenes. His favorite trick? Slipping a long exposure while the house lights were dimmed, so the crowd blurred into ghostly shadows behind the sharp figure in the spotlight. If you’ve ever seen a period photograph where the star is crisp but the audience looks like a smudge of smoke, that’s probably him. Hunt down his *Guy Little Theatrical Photograph*—it’s the next best thing to eavesdropping on a 19th-century play.