In the novel The Hollow, Inspector Grange is an officer of the Wealdshire police who is the investigating officer into the murder of Dr John Christow at The Hollow. A perceptive officer, Grange soon realised that the people at the Hollow knew more about the incident than they were prepared to tell and that they were all joining together to mislead him and his men. "All gossamer and spiders' webs," he told Poirot in frustration at one point.
Inspector Grange is described as "a large, heavily built man with a down-drooping, pessimistic moustache". He has two sons, one of whom is named Teddy.