Merodach

Merodach was a demon in the Land of Fiction. He pretended to be a minister of the parish of Lammermoor in Lothian. The Sixth Doctor and the fictional Jamie McCrimmon met him while they thought they were in 1780 Scotland. (AUDIO: Night's Black Agents)

Behind the scenes
Merodach is a character from James Hogg's short story "The Brownie of the Black Haggs".