Onthyr is one of the Unknown bodyguards of Lord Syltorin Margaster, employed by him and paid for by the Fey Court of Hygon. He can be seen guarding the entrance to the Assembly of the Black Lotus, or carrying his liege's palanquin around the town.
He is relentless in his enforcement of orders and rules, and doesn't easily bend. He is polite but not verbose, preferring succinct sentences - or just silence. Ontyr learned Old World Common, but has a heavy Sylvan accent.
Onthyr's parents live in the Pines, where he also hails from. Friends sometimes call him just Thyr.