Barmin was a witcher of the School of the Wolf who took the role of Vesemir's teacher and tutor. He was probably killed during the attack of the fanatics on Kaer Morhen fortress. Geralt mentions him while encouraging Ciri in The Witcher 3: Wild Hunt.
- Kurt Dysart mentions that he was acquainted with a Witcher whose name started with a B and sounded like Barnabas. This is likely referring to Barmin.