Egon Spengler sleeps an average of 14 minutes per day, leaving him "a lot of time to work." Egon was very interested in paranormal phenomena, even while working with Ray Stantz and Peter Venkman at the University. He and Ray Stantz studied paranormal literature in their spare time and were interested in theories of reincarnation. Egon was usually the first to interview case subjects, adding to their mantra, "we're ready to believe you." Examples were Dana Barrett from her Zuul encounter and her carriage phenomenon with Oscar. Even people Peter called "schizo" always went to either Egon or Ray to describe their
Egon Spengler of Spengler's genius, tries to make him come back to Ohio (where Spengler grew up) to work at his uncle's lab, but fortunately, after his uncle accidentally releases the Stay Puft Marshmallow Man from the containment unit, he realizes that ghosts are real and accepts Spengler's work. Throughout the series, Spengler would have his soul switched with that of a demon, have his molecular structure destabilized to the point that it stranded him in the Netherworld (requiring him to be rescued by the others), experience a curse-induced age regression that nearly destroyed him, turn into a were-chicken, and have his