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
John Spengler and strategies, and was a member of Harvard's Greenhouse Gases Executive Committee. He has been an advisor to the World Health Organization on indoor air pollution, personal exposure, and air pollution epidemiology. In 2003, Dr. Spengler received the 9th Annual Heinz Award in the Environment. Ph.D., 1971, State University of New York, Albany John Spengler John Daniel Spengler is an American health scholar currently the Akira Yamaguchi Professor of Environmental Health and Human Habitation at Harvard T.H. Chan School of Public Health and a Faculty member in the Department of Environmental Science and Public Policy of the Faculty of Arts