Egon Spengler portraying the character other than to follow Ramis's example. He got the part anyway and said in an interview that he did two different takes: in which he impersonated Ramis, the other in which he tried a more "Woody Allen"-like approach that did not suit the character's physicality, he admitted. Egon Spengler is a tall, laconic, bespectacled, awkward member of the team responsible for the main theoretical framework for their paranormal/quantum studies. Being addicted to science, he is the creator of the Ghostbusters' equipment along with Raymond Stantz, thus making him the brains of the Ghostbusters. Although book smart, Spengler
Egon Olsen with the casting, and suggested that he and Byhring switch roles, to which Byhring and the directors fully agreed. Opsahl brought a lot of his comic talents to the role, in particular his doubletakes and long (and at the time profane) rants and outbursts, which Opsahl was known for on stage. He played the role in all fourteen films, including the final film in which he did half his scenes with a prosthetic foot, after having it amputated due to diabetes half-way through production. Egon Olsen Egon Olsen (born 12 March 1925 (DK), 13 March 1923 (NO)) is a fictional