Bill Murray character Dr. Peter Venkman
Dan Aykroyd character Dr. Raymond Stantz
Sigourney Weaver character Dana Barrett
Harold Ramis character Dr. Egon Spengler
Rick Moranis character Louis Tully
Annie Potts character Janine Melnitz
William Atherton character Walter Peck
Ernie Hudson character Winston Zeddemore
David Margulies character Mayor
Steven Tash character Male Student
Jennifer Runyon character Female Student
Slavitza Jovan character Gozer
Michael Ensign character Hotel Manager
Alice Drummond character Librarian
Jordan Charney character Dean Yager
Timothy Carhart character Violinist
John Rothman character Library Administrator
Tom McDermott character Archbishop
Roger Grimsby character Self
Larry King character Self
Joe Franklin character Self
Casey Kasem character Self
John Ring character Fire Commissioner
Norman Matlock character Police Commissioner
Joe Cirillo character Police Captain
Joe Schmieg character Police Seargeant
Reginald VelJohnson character Jail Guard
Rhoda Gemignani character Real Estate Woman
Murray Rubin character Man at Elevator
Larry Dilg character Con Edison Man
Danny Stone character Coachman
Patty Dworkin character Woman at Party
Jean Kasem character Tall Woman at Party
Lenny Del Genio character Doorman
Frances E. Nealy character Chambermaid
Sam Moses character Hot Dog Vendor
Christopher Wynkoop character TV Reporter
Winston May character Businessman in Cab
Tommy Hollis character Mayor's Aide
Eda Reiss Merin character Louis's Neighbor
Ric Mancini character Policeman at Apartment
Kathryn Janssen character Mrs. Van Hoffman
Stanley Grover character Reporter
Carol Ann Henry character Reporter
James Hardie character Reporter
Frantz Turner character Reporter
Nancy Kelly character Reporter
Paul Trafas character Ted Fleming
Cheryl Birchenfield character Annette Fleming
Ruth Oliver character Library Ghost
Kymberly Herrin character Dream Ghost
Murray Bandel character Extra - NY Public Library (uncredited)
Larry Bilzarian character Prisoner (uncredited)
Billy Bryan character Stay Puft Marshmallow Man (uncredited)
Matteo Cafiso character Boy at Hot Dog Stand (uncredited)
Kadrolsha Ona Carole character Women - NY Public Library (uncredited)
Larry Chain character Man (uncredited)
Frankie Como character T-Shirt Vendor (uncredited)
Peter Costanza character Man Fleeing Marshmallow Man (uncredited)
James 'Hotfeet' Davis character Soldier (uncredited)
John De Bello character Patrolman Matthews (uncredited)
Paddi Edwards character Gozer (voice) (uncredited)
Eldo Ray Estes character Redheaded Man (uncredited)
Brute Force character Hare Krishna acolyte (uncredited)
Debbie Gibson character Birthday Girl in Tavern on the Green (uncredited)
Willow Hale character Student at Columbia University (uncredited)
Jon Hayden character Library Patron (uncredited)
Ron Jeremy character Man Behind Barricade (uncredited)
Joseph Marzano character Man in Taxi (uncredited)
Joe Medjuck character Man at Library (uncredited)
Danny Nero character Reporter (uncredited)
Frank Patton III character City Hall Cop (uncredited)
Harrison Ray character Terror Dog (uncredited)
Ivan Reitman character Zuul / Slimer (voice) (uncredited)
Frank Rivers character Prisoner (uncredited)
Mario Todisco character Prisoner (uncredited)
Bill Walton character Self
Manny Weltman character Party Guest (uncredited)
Mark Bryan Wilson character Slimer (uncredited)
