Reparto

• Bill Murray — Dr. Peter Venkman
• Harold Ramis
• Ernie Hudson — Winston Zeddemore
• Annie Potts — Janine Melnitz
• Peter MacNicol — Dr. Janosz Poha
• David Margulies — Mayor Lenny
• Wilhelm von Homburg — Vigo
• Mary Ellen Trainor — Brownstone Mother
• Kevin Dunn — Milton Angland
• Brian Doyle-Murray — Psychiatrist
• Max von Sydow — Vigo (voice)
• Ben Stein — Public Works Official
• Michael P. Moran — Frank the Doorman
• George P. Wilbur — Bailiff
• Cheech Marin — Dock Supervisor
• Philip Baker Hall — Police Commissioner
• Rick Moranis — Louis Tully
• Chloe Webb — Elaine
• Dan Aykroyd — Dr. Raymond Stantz
• Sigourney Weaver — Dana Barrett
• Harris Yulin — Judge Wexler
• Janet Margolin — The Prosecutor
• Kurt Fuller — Jack Hardemeyer