Whistler is a compact, wiry halfling with a weathered face, bright hazel eyes, and sandy-brown hair tied into a short tail. His nimble hands are calloused from years of playing strings, picking locks, and climbing rooftops. He wears a patched but stylish travel coat, soft leather boots, a bright red scarf, and a collection of tiny bells sewn into his cuffs. A polished lute hangs across his back, while hidden pockets hold cards, lockpicks, folded maps, and scraps of unfinished songs.

Whistler is cheerful, quick-witted, and impossible to discourage for long. He treats every stranger as a possible source of a great story and every dangerous situation as an opportunity for an even better one. Beneath his easy grin is a sharp observer who notices exits, concealed weapons, suspicious accents, and who is being ignored in the room.

Whistler learned to steal before he learned to read. As a child in a crowded river district, he slipped purses from distracted travelers, copied keys for desperate neighbors, and memorized every alley where a small body could vanish. He was never cruel, however. A stolen coin might become a loaf of bread for an abandoned child, and anything taken from a bully or corrupt merchant usually found its way back to someone who needed it more. His street name came from the soft tune he whistled whenever a job was going well, or whenever he wanted a lookout to know that he was still alive. His life changed when an aging traveling musician caught him stealing a silver pick from a tavern performer. Instead of turning him in, the musician challenged Whistler to play a song for every item he had stolen. Whistler could not play a single note, so he became an apprentice. Years of practice transformed his quick fingers into a remarkable talent. He learned ballads, bawdy tavern songs, haunting laments, and the subtle magic woven through a bard's performance. Now he travels from town to town, using music, charm, and carefully chosen deception to expose tyrants, help the helpless, and collect stories worth singing. Every adventure is another verse, and every narrow escape gives him a better chorus.