The Dealer

"'Buckle up kid, we're headed to sucker country, otherwise known as Vegas!' - The Dealer, speaking to Watkins"

Summary
The Dealer is a rather enigmatic figure, and not much is known about them. They seem to be attracted to other's suffering, and often show up when someone can most easily be taken advantage of.

They are a Shadowy Horror.

History
Not much is known about the Dealer's past before Star summoned them through a ritual in Red Hand's Book in hopes of learning more about their past. They promptly tricked Star into playing a rigged game of cards, after which Star's soul was sealed in their deck of cards - specifically, the Jack of Clubs, which they carry around with them at all times.

They then showed up when Watkins was dying in the Nevada desert on their way to Vegas in search of CADMUS, helping them to their car before revealing that they had cut them with one of their playing cards - the Two of Diamonds - and stolen their soul (well, what little remained of it at that point) as well.

The two are currently driving to Vegas.