Was actually a cover identity of Rudolph van Richten.
A stranger to Barovia. Claims to be a bard but is not very musically talented.
Has a brightly coloured wagon in town.
Had heard of Barovia in his travels and was interested in going there for more stories but implied he was pulled in by the mists.
Is definitely familiar with (or from?) Faerun, though he travels a lot so doesn't really claim to be from any one place.
Has a horse that he feeds apples and some other creature that he feeds meat... Maybe in the wagon?