Fred

Other appearances
Fred is later kidnapped in the quest, The Sane Asylum, and you must rescue him.

Feat exchange costs
The Hall of the Mark quest given by Lockania in the Marketplace provides a free Feat Respec Token once per character. Beyond that, both gold and a Dragonshard are required, with the amount and type depending on the current character level. The Platinum required for a feat exchange is: (n^3)*10 where n is your character's current level.