Egon Spengler It is implied in one episode of the animated series that Spengler accidentally burned down his family's garage. Spengler is the only original Ghostbuster to return for the "Extreme Ghostbusters" series as a regular, acting as a mentor to the new Ghostbusters (the others appeared for a two-part episode, "Back in the Saddle"), and monitoring and sustaining the Containment Unit while working as a paranormal studies professor at a university. He is the de facto leader of the new, younger team of Ghostbusters; although the old team had gone into retirement after they apparently dealt with all the ghosts in
Hans Egon Holthusen correspondence (encompassing more than five thousand letters), genealogical records, and a photographic archive) are preserved at the Library of the University of Hildesheim (Universitätsbibliothek Hildesheim) in Lower Saxony (‘The Papers of Hans Egon Holthusen’ — "Nachlass Hans Egon Holthusen"). The Library of Congress in Washington, D.C., holds a sound recording of the lecture on post-war German literature, entitled ‘Crossing the Zero Point’, which he delivered in the Coolidge Auditorium of the Library of Congress on January 25, 1960 (and which he begins by mentioning ‘the German catastrophe of 1945’, "not" that of 1933). Hans Egon Holthusen Hans Egon Holthusen (April