Josh Hartnett as Bucky Bleichert

Scarlett Johansson as Kay Lake

Aaron Eckhart as Lee Blanchard

Hilary Swank as Madeleine Linscott

Mia Kirshner as Elizabeth Short

Mike Starr as Det. Russ Millard

Fiona Shaw as Ramona Linscott

Patrick Fischler as Deputy DA Ellis Loew

James Otis as Dolph Bleichert

John Kavanagh as Emmett Linscott

Troy Evans as Chief Ted Green

Anthony Russell as Morrie Friedman

Pepe Serna as Tomas Dos Santos

Angus MacInnes as Capt. John Tierney

Rachel Miner as Martha Linscott

Victor McGuire as Sgt. Bill Koenig

Gregg Henry as Pete Lukins

Jemima Rooper as Lorna Mertz

Rose McGowan as Sheryl Saddon

Dan Ponce as Mp

Graham Norris as Cop

Mike O'Connell as Shore Patrol

Michael P. Flannigan as Desk Officer

John Solari as Baxter Fitch

Stephanie L. Moore as Baxter Fitch's Girlfriend

Noel Arthur as Gunman #1

Todd Thomas as Gunman #2

Steve Eastin as Detective

Ian McNeice as Coroner

Claudia Katz Minnick as Frolic Bartender

Mia Frye as Laverne Bartender

Richard Brake as Bobby DeWitt

William Finley as George Tilden

Joost Scholte as Madeleine's GI

Terrell J. Ramsey as Dealer

Teo as Friedman's Tough Guy #1

Kiril Efremov as Friedman's Tough Guy #2

Petar Milchev as Perp

Désirée Cyganek as Lesbian Bar Dancer (uncredited)

Brian De Palma as Elizabeth's Screen Test Director (voice) (uncredited)

Kevin Dunn as Elizabeth Short's Father (uncredited)

K.D. Lang as Lesbian Bar Singer (uncredited)

David Raibon as Man (uncredited)