Christian Bale as Trevor Reznik

Jennifer Jason Leigh as Stevie

Aitana Sánchez-Gijón as Marie

John Sharian as Ivan

Michael Ironside as Miller

Lawrence Gilliard Jr. as Jackson

Reg E. Cathey as Jones

Anna Massey as Mrs. Shike

Matthew Romero Moore as Nicholas

Robert Long as Supervisor Furman

Colin Stinton as Inspector Rogers

Craig Stevenson as Tucker

Ferran Lahoz as Gonzales

Jeremy Xido as Evangelisti

Norman Bell as DMV Clerk

Nancy Crane as Waitress

Richard Torrington as Radiologist

Buffy Davis as Marge

Reg Wilson as Bartender

Ramon Camín as Detective

Christopher Hood as Drunk

Marc Aspinall as Inspector Daniels

Guillermo Ayesa as Old Fisherman

Daniel Ceren as Pedestrian

Marta Rubio as Woman in Crowd

Ewan Watson as Man in Crowd

Chike Johnson as Young Policeman

Molly Malcolm as Ticket Agent

Jaume Mimó as Man in Stall

Flora Álvarez as Woman in Stall

James DePaul as Reynolds (uncredited)