Witchfinder
i) On the Disc, a witch such as Miss Tick or her apprentice Lucy Warbeck - in this case a talent scout, looking out for likely or talented girls such as Tiffany Aching, with the intent of persuading them to join the Craft.
ii) In the Roundworld of Good Omens, there are only two surviving witchfinders - Shadwell and his trainee Newton Pulsifer. The only two members of the Witchfinder Army, they are charged with looking for witches for an entirely different time-honoured reason..