Bill Murray

Peter Venkman

Dan Aykroyd

Ray Stantz

Sigourney Weaver

Dana Barrett

Harold Ramis

Dr. Egon Spengler

Rick Moranis

Louis Tully

Ernie Hudson

Winston Zeddemore

Annie Potts

Janine Melnitz

Peter MacNicol

Dr. Janosz Poha

Harris Yulin

Judge Wexler

David Margulies

Mayor Lenny

Kurt Fuller

Jack Hardemeyer

Janet Margolin

The Prosecutor

Wilhelm von Homburg

Vigo

Henry J. Deutschendorf II

Baby Oscar

Michael P. Moran

Frank the Doorman

Mordecai Lawner

Man with a Ticket

Mary Ellen Trainor

Brownstone Mother

Jason Reitman

Brownstone Boy #2

Aaron Lustig

Norman the Producer

Page Leong

Spengler's Assistant

Mark Schneider

Arguing Couple

Catherine Reitman

Girl with Puppy

Dave Florek

First Cop

Richard Foronjy

Con Ed Supervisor

George P. Wilbur

Bailiff

Bobby Brown

Mayor's Doorman

Christopher Neame

Maitre D'

Tom Dugan

Restaurant Cop #1

Robert Alan Beuth

Store Manager

Ralph Monaco

Police Sergeant

Ron Cummins

Police Lieutenant

Cheech Marin

Dock Supervisor

John Hammil

Detective #1

Brian Doyle-Murray

Psychiatrist

Louise Troy

Woman with Fur Coat

Douglas Seale

Plaza Hotel Man

Ben Stein

Public Works Official

Erik Holland

Fire Commissioner

Philip Baker Hall

Police Commissioner

Trish Cook

Nun at Statue of Liberty (uncredited)

Kevin Dunn

Milton Angland (uncredited)

Ryan Francis

Brownstone Boy #3 (uncredited)

Jim Fyfe

Scoleri Brother / Ghost Jogger (uncredited)

George Gerard

Man in Cab (uncredited)

Ivan Reitman

Man Walking Outside Firehouse / Slimer (voice) (uncredited)

Felix Silla

Courtroom Spectator (uncredited)

Max von Sydow

Vigo (voice) (uncredited)

Chloe Webb

Elaine (uncredited)