Marwin is an undead dwarf, recognized as a friend and neighbor of Jamal. Upon Sylvie's entry into the hall, Marwin and other undead exhibited rage but hesitated upon recognizing Jamal, indicating a lingering connection to their past lives.
As the group navigated the flooded hall, Marwin and the other undead dwarves screamed at Sylvie, displaying aggression and confusion when confronted with Jamal. Marwin's presence among the undead signifies a tragic transformation from a living companion to a hostile entity.