Jaggen first appears in Briefing with Gruppenführer Jaggen in which he is introduced to Erik Schneider and Nazario Battista by Rafael Z. Wolfram. Described as being in his late forties with slicked black hair, he is one of the only men alive who truly commands the fear of Wolfram, actively insulting both the Major and his division. He is, however, hated by his subordinates and has been described as a "pig" on a number of occasions. Jaggen is also implied to be an alcaholic of sorts. During his introductory thread, he derides the Waffen SS for their ineptitude but eventually gives in to her leaders' pleas and grants them leave to fight on the front line.