Mr Roberts (The Mirror Crack'd from Side to Side)

In the novel The Mirror Crack'd from Side to Side, Mr Roberts runs Inch's Taxi Service in St. Mary Mead. In the past, Mr Inch had been the proprietor of two cabs, which met trains at the station, and were also hired by local ladies to take them "calling", out to tea parties, and occasionally to dances. In time, his son, who was known as Young Inch (although he was forty-five years old at the time), took over the business. The older Mr Inch continued to drive the elderly ladies who found his son too young and irresponsible. To keep up with the times, the younger Inch abandoned horse vehicles for motor cars. He eventually sold the business to Mr Bardwell, who eventually sold it to Mr Roberts.

The older ladies in St. Mary Mead continued to refer to their journeys as going somewhere "in Inch", "as though they were Jonah and Inch was a whale".

Towards the end of the novel, when Miss Marple wants to go to Gossington Hall, she tells Miss Knight to call Inch. Miss Knight is initially confused, and says that the name of the man who runs the taxi servie is Roberts. Miss Marple says that to her, he is Inch, and always will be.

Portrayals
Mr Roberts does not appear the 1992 BBC adaptation because Inch himself appears.