Jack Nicholson
J.J. 'Jake' Gittes
Faye Dunaway
Evelyn Cross Mulwray
Perry Lopez
Lieutenant Lou Escobar
John Hillerman
Russ Yelburton
Roman Polanski
Man with Knife
Roy Jenson
Claude Mulvihill
Richard Bakalyan
Detective Loach
James Hong
Evelyn's Butler
Joe Mantell
Lawrence Walsh
Noble Willingham
Councilman
Jesse Vint
Farmer in the Valley
Darrell Zwerling
Hollis I. Mulwray
Elliott Montgomery
Councilman
Claudio Martínez
Boy on Horseback
Federico Roberto
Cross' Butler
John Holland
Farmer in the Valley
Jim Burk
Farmer in the Valley
Denny Arnold
Farmer in the Valley
Elizabeth Harding
Curly's Wife
Richard Warren
Driver (uncredited)
Fritzi Burr
Mulwray's Secreatry
Cosmo Sardo
Barber (uncredited)
Charles Fogel
Retirement Home Resident (uncredited)