They're here to save the world.
After losing their university jobs, three parapsychologists start a ghost-catching business in New York City and uncover a supernatural threat that could destroy the world.
Female Student
Zuul / Slimer (voice) (uncredited)
Dana Barrett
Peter Venkman
Janine Melnitz
Egon Spengler
Winston Zeddemore
Ray Stantz
Walter Peck
Louis Tully
Violinist
Jail Guard
Hotel Manager
Casey Kasem (voice)
Larry King
Birthday Girl in Tavern on the Green (uncredited)
Library Administrator
Dean Yager
Mayor
Librarian