Jake Gyllenhaal Featured
as Robert Graysmith
Mark Ruffalo Featured
as David Toschi
Anthony Edwards Featured
as William Armstrong
Robert Downey Jr. Featured
as Paul Avery
Chloë Sevigny Featured
as Melanie
Elias Koteas Featured
as Jack Mulanax
John Carroll Lynch
as Arthur Leigh Allen
Brian Cox
as Melvin Belli
Dermot Mulroney
as Martin Lee
Charles Fleischer
as Bob Vaughn
Philip Baker Hall
as Sherwood Morrill
James Le Gros
as George Bawart
Donal Logue
as Ken Narlow
John Getz
as Templeton Peck
Adam Goldberg
as Duffy Jennings
Clea DuVall
as Linda del Buono