Drogan Droganson, or Master Drogan to his apprentices, is a member of a secret organization called the Harpers that help fight evil wherever it rises. He is a dwarven wizard and a cleric. He is the teacher of the main character at the beginning of the Shadows of Undrentide campaign along with three other students, two of whom, Xanos Messarmos and Dorna Trapspringer are possible henchmen for the main character.
Drogan is ambushed by a small army of kobolds at the very beginning of the campaign and falls prey to a strong magical poison. The main character has a short optional quest to assist in the initial curing of this poison.
He recovers in any case at when the main character completes the main quest where he tasks the main character to proceed with the quest into the next chapter.
Drogan reappears near the end of the interlude of the campaign to assist the character pursue the main villain of the plot, Heurodis, where he pays the ultimate price in the attempt.