Barnaby is a NPC from Dragon's Dogma.
He is a pawn, meaning he does not age and cannot die. While he was accompanying an Arisen during a fight with the dragon, they were both defeated and his Arisen told him to help the Arisen who follow. So, he continued helping out Arisen, even though they kept dying at the hands of the dragons.
Barnaby also helped out mercenaries, even fighting alongside them on the front lines. His relationship with them grew somehow, as he suffered a terrible wound defending a mercenary during one battle. He never fully recovered from this and because of this, he ended up creating the Pawn Guild.