Inspector Miller (The Disappearance of Mr Davenheim)

In the short story The Disappearance of Mr Davenheim, Inspector Miller was the Scotland Yard investigating officer into the disappearance of the banker and finacier Mr Davenheim. Poirot did not meet him in this story as Japp had challenged him to solve the mystery independently and without leaving his house.

The inspector is probably also the same Miller who was in charge of the case of the murder of Wu Ling in the short story The Lost Mine. Here Poirot worked with him, although without much pleasure. Poirot described the inspector as a person wholly different from Japp. Miller was "conceited, ill-mannered and quite insufferable". For Poirot, the only real difficulty he faced in solving the case was in convincing Miller of the facts. He considered Miller "obstinate and imbecile" and in the end Miller took the credit for everything.

The character of Inspector Miller was not featured in the film adaptation of The Lost Mine nor that of The Disappearance of Mr Davenheim''. In both cases, Miller's role was replaced by Chief Inspector Japp.