Sát Nhân Huyền Thoại

David Fincher

Jake Gyllenhaal Robert Graysmith

Mark Ruffalo David Toschi

Anthony Edwards William Armstrong

Robert Downey Jr. Paul Avery

Chloë Sevigny Melanie

Elias Koteas Jack Mulanax

John Carroll Lynch Arthur Leigh Allen

Brian Cox Melvin Belli

Dermot Mulroney Martin Lee

Charles Fleischer Bob Vaughn

Zach Grenier Mel Nicolai

Philip Baker Hall Sherwood Morrill

James Le Gros George Bawart

Donal Logue Ken Narlow

Richmond Arquette Zodiac 1 / Zodiac 2

Bob Stephenson Zodiac 3

John Lacy Zodiac 4

Ed Setrakian Al Hyman

John Getz Templeton Peck

John Terry Charles Thieriot

Candy Clark Carol Fisher

June Diane Raphael Mrs. Toschi

Ciara Hughes Darlene Ferrin

Lee Norris Young Mike Mageau

Patrick Scott Lewis Bryan Hartnell

Pell James Cecilia Shepard

David Lee Smith Father

Jason Wiles Lab Tech Dagitz

Charles Schneider Cabbie / Paul Stine

James Carraway Shorty

Tom Verica Jim Dunbar

Jimmi Simpson Mike Mageau

Doan Ly Belli's Housekeeper

Karina Logue Woman

Joel Bissonnette Inspector Kracke

John Mahon Riverside Captain

Matt Winston John Allen

Jules Bruff Catherine Allen

John Ennis Terry Pascoe

J. Patrick McCormack Police Commissioner

Adam Goldberg Duffy Jennings

Clea DuVall Linda del Buono

Paul Schulze Sandy Panzarella

Adam Trese Detective #1

Penny Wallace Mulanax's Secretary

John Hemphill Donald Cheney

Michel Francoeur Man on Marquee

Thomas Kopache Copy Editor #1

Barry Livingston Copy Editor #3

Christopher John Fields Copy Editor #4

Jack Samson Young David Graysmith

Micah Sauers David Graysmith

Zachary Sauers Aaron Graysmith

Jessica Baltutis Margot Graysmith

Peter Quartaroli Patrolman Fouke

Geoff Callan Patrolman Zelms

Michael Hungerford Truck Driver

Anna Katarina Society Woman

E.P. McKnight Informant (Hall of Justice A)

Betty Murphy Informant

Jeff Daniel Phillips Informant

Shane Woodson Informant

Cookie Crawford Informant #8

Cassius M. Willis Uniform Cop

Judith Drake Florence Douglas

Phoebe Holston Prison Guard

Marty Lodge Pinole Foreman

Cooper Thornton Internal Affairs Agent #1

Cazimir Milostan Internal Affairs Agent #2

Charlotte Ferguson Kathleen Johns' baby

Phoebe Ferguson Kathleen Johns' baby

Kacey Malmsten Kathleen Johns' baby

Karly Malmsten Kathleen Johns' baby

JD Cullum Director

Stanley B. Herman Staff Editor

Roy Lee Jones Distraught African American Male

Michael Rose Navy Project Leader

James Joseph O'Neil DOD Project Leader

Rod Damer FBI Codebreaker

John Sarno Donald Harden

Gloria Grant Bettye Harden

Brett Rickaby Detective Roy

M.F. Bernier Detective #2

Carter Evans Newscaster #2

Bill Seward TV News Anchor

Dave Nemeth Newscaster #4

Ted Garcia Anchorman #1

Greg Wolf Interviewer #1

Barry LeBrock Reporter

Ione Skye Kathleen Johns (uncredited)

David Winston Barge Vallejo Desk Ofiicer (uncredited)

Hayati Akbas Hardware Store Customer (uncredited)

Brad Carr Camera Man (uncredited)

Mitchell Fink Reporter (uncredited)

Erica Ford Traveler (uncredited)

Tish Hicks Informant (uncredited)

Danielle McKee Prisoner (uncredited)

Derris Nile Office Worker (uncredited)

Carmen Plumb Janie (uncredited)

Callie Thompson Child Witness (uncredited)

Bud Davis Patrolman (uncredited)