Peter Venkman

Ray Stantz

Dana Barrett

Egon Spengler

Louis Tully

Janine Melnitz

Walter Peck

Winston Zeddemore

Gozer

Mayor

Male Student

Female Student

Hotel Manager

Librarian

Dean Yager

Violinist

Library Administrator

Archbishop

Roger Grimsby

Larry King

Joe Franklin

Casey Kasem (voice)

Fire Commissioner

Police Commissioner

Police Captain

Police Seargeant

Jail Guard

Real Estate Woman

Man at Elevator

Con Edison Man

Coachman

Woman at Party

Tall Woman at Party

Doorman

Chambermaid

Hot Dog Vendor

TV Reporter

Businessman in Cab

Mayor's Aide

Louis's Neighbor

Policeman at Apartment

Mrs. Van Hoffman

Reporter

Reporter

Reporter

Reporter

Reporter

Ted Fleming

Annette Fleming

Library Ghost

Dream Ghost

Stay Puft Marshmallow Man (uncredited)

Boy at Hot Dog Stand (uncredited)

T-Shirt Vendor (uncredited)

Man Fleeing Marshmallow Man (uncredited)

Patrolman Matthews (uncredited)

Gozer (voice) (uncredited)

Redheaded Man (uncredited)

Hare Krishna acolyte (uncredited)

Birthday Girl in Tavern on the Green (uncredited)

Student at Columbia University (uncredited)

Library Patron (uncredited)

Man Behind Barricade (uncredited)

Man in Taxi (uncredited)

Man at Library (uncredited)

Reporter (uncredited)

City Hall Cop (uncredited)

Terror Dog (uncredited)

Zuul / Slimer (voice) (uncredited)

Prisoner (uncredited)

Prisoner (uncredited)

Bill Walton (uncredited)

Slimer (uncredited)