Sigourney Weaver
Dana Barrett
Max von Sydow
Vigo (voice) (uncredited)
Bill Murray
Peter Venkman
Annie Potts
Janine Melnitz
Chloe Webb
Elaine (uncredited)
Dan Aykroyd
Ray Stantz, Screenplay, Characters
Gene S. Cantamessa
Production Sound Mixer
Ernie Hudson
Winston Zeddemore
Cheech Marin
Dock Supervisor
Philip Baker Hall
Police Commissioner
Harold Ramis
Dr. Egon Spengler, Screenplay, Characters
Greg John Callas
Construction Coordinator
Ivan Reitman
Director, Producer, Man Walking Outside Firehouse / Slimer (voice) (uncredited)
Peter MacNicol
Dr. Janosz Poha
Kevin Dunn
Milton Angland (uncredited)
Dave Florek
First Cop
Harris Yulin
Judge Wexler
Gary J. Wayton
Stunt Double
Rick Moranis
Louis Tully
Mary Ellen Trainor
Brownstone Mother
Chuck Gaspar
Special Effects
Kurt Fuller
Jack Hardemeyer
Michael P. Moran
Frank the Doorman
Jason Reitman
Brownstone Boy #2
William A. Petrotta
Property Master
Catherine Reitman
Girl with Puppy
Ben Stein
Public Works Official
Tony Brubaker
Stunt Double
George Gerard
Man in Cab (uncredited)
Jon Curtis Price
Special Effects
Yvette Cruise
Maria, Dana's Maid
William Hartman
Sound Editor
Bo Welch
Production Design
Chris Jargo
Dialogue Editor
Joel Kramer
Stunt Coordinator
Bobby Brown
Mayor's Doorman
Felix Silla
Courtroom Spectator (uncredited)
Dennis Muren
Visual Effects Supervisor
Aaron Lustig
Norman the Producer
Dylan Goss
Camera Loader
Richard Foronjy
Con Ed Supervisor
David Margulies
Mayor Lenny
Randy Edelman
Original Music Composer
Erik Holland
Fire Commissioner
Michael Chapman
Director of Photography
Michael D. Moore
Second Unit Director
Steve Cantamessa
Boom Operator
Gandhi Bob Arrollo
Makeup Artist