Egon Spengler him, which leaves him a little flustered. He celebrates his 40th birthday during this series, which would put him in his late twenties when "The Real Ghostbusters" began. Age is the largest factor causing Spengler to having transition from active ghost hunting to a mentorship role; in one episode where the original Ghostbusters guest starred on an episode the audience clearly sees middle adulthood has affected the speed and weakened the stamina of the original Ghostbusters. Although Egon Spengler does not appear in the 1990 "The Earth Day Special", his character and status as a Ghostbuster is mentioned, and Harold
Egon Spengler character Dr. Jillian Holtzmann and Harold Ramis' character Dr. Egon Spengler created the film's proton packs. The paragraph accompanying the video read: "Engineers at Sony Corporation developed the 2016 Proton Pack™ in collaboration with nuclear engineer and munitions expert Dr. Jillian Holtzmann. Sony President and CEO Kazuo Hirai commented “The perfection of the Proton Pack™, long a dream of the world’s greatest engineers since first pioneered by" Dr. Egon Spengler "of Columbia University, is an example of Sony’s relentless pursuit of innovation. It absolutely delivers the wow factor that is so important to our company mission." Additionally, in the film,