Thrumdahg is one of Starfire‘s rebels. She seems to trust him to watch her back more than she does the other rebels, and he is the one to enter Lortnan Manor alongside her. He is attracted to Starfire and attempts to seduce her during the Mygorg siege, but Starfire – still mourning her beloved Dagan – flips him over her shoulder.
He proceeded to stalk her and was planning to assault and rape her when ambushed by Thump. The larger man hung Thrumdahg from a tree, breaking his neck.