Jack Nicholson
as J.J. 'Jake' Gittes

Faye Dunaway
as Evelyn Cross Mulwray

John Huston
as Noah Cross

Perry Lopez
as Lieutenant Lou Escobar

John Hillerman
as Russ Yelburton

Diane Ladd
as Ida Sessions

Roman Polanski
as Man with Knife

Roy Jenson
as Claude Mulvihill

Richard Bakalyan
as Detective Loach

James Hong
as Evelyn's Butler

Bruce Glover
as Duffy

Joe Mantell
as Lawrence Walsh

Roy Roberts
as Mayor Bagby

Noble Willingham
as Councilman

Rance Howard
as Irate Farmer

Jesse Vint
as Farmer in the Valley

Burt Young
as Curly

Lee de Broux
as Policeman

Darrell Zwerling
as Hollis I. Mulwray

Nandu Hinds
as Sophie

James O'Rear
as Lawyer

Beulah Quo
as Maid

Jerry Fujikawa
as Gardener

Belinda Palmer
as Katherine

Elliott Montgomery
as Councilman

George Justin
as Barber

C.O. Erickson
as Customer

Charles Knapp
as Mortician

Claudio Martínez
as Boy on Horseback

Federico Roberto
as Cross' Butler

Allan Warnick
as Clerk

John Holland
as Farmer in the Valley

Jim Burk
as Farmer in the Valley

Denny Arnold
as Farmer in the Valley

Elizabeth Harding
as Curly's Wife

John Rogers
as Mr. Palmer

Cecil Elliott
as Emma Dill

Paul Jenkins
as Policeman

Bob Golden
as Policeman

Richard Warren
as Driver (uncredited)

Fritzi Burr
as Mulwray's Secreatry

Cosmo Sardo
as Barber (uncredited)

Charles Fogel
as Retirement Home Resident (uncredited)