Some warriors, like Sir Xalen, are able to channel demonic energies, but that doesn't make them demons.

However there are True Daemons out there somewhere as well, and they're under no one's control.

Demon caster, warlord and centurion.

Chargers. They wield their maces two-handed to inflict maximum damage.

Cohorts. Powerful, organized, tough and difficult to resist.

Ranged demons rain hellish bolts down on enemies from afar.
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You saw the space version of these guys in Peach Pluton Apockalypse.
Both white and orange horns broke up the colour scheme too much imo, so I removed them.
Black horns look good on them, but it seems I have fewer of them than I thought (or I misplaced them somewhere).
Lmk what you think!