These two don't get along, for good reasons. The one on the right is Clay's dad, Sanders.
All earth demons have sort of a theme mineral/rock/formation thingamajig.Most are named after it, so it's not hard to guess. They don't have their horns visible because they're being all casual in the human world. (also,Sanders' are crumbly, and a constant stream of sand onto your head can get old fast)
#ocsplease