Boatman

A spirit met by Holly during Season Two who spoke with 30-40 overlapping voices that all said sort of the same thing, was paid with 2p coins and transported her along to the Themes to the site of the murder of a couple of spirits.

Sunny had a long catch up with them (Season_Eight#2023-02-27) while they were arranging the grand funeral of Helen Mirren and they tell her "She talks about their origins, hears they essentially always existed now, commonly these days are manifest in the world as cabbies, they know the streets and take people places."