Jake Gyllenhaal as Louis Bloom

Riz Ahmed as Rick

Rene Russo as Nina Romina

Bill Paxton as Joe Loder

Kevin Rahm as Frank Kruse

Michael Hyatt as Detective Frontieri

Price Carson as Detective Lieberman

Kent Shocknek as Kent Shocknek

Sharon Tay as Sharon Tay

Ann Cusack as Linda

Carolyn Gilroy as Jenny

Marco Rodríguez as Scrapyard Owner

Michael Papajohn as Security Guard

Jonny Coyne as Pawn Shop Owner

Rick Chambers as KWLA Anchor Ben Waterman

Pat Harvey as Pat Harvey

Rick Garcia as Rick Garcia

James Huang as Marcus Mayhem Video

Leah Fredkin as Female Anchor

Bill Seward as Bill Seward

Holly Hannula as KWLA Anchor Lisa Mays

Nick Chacon as Cop #1

Kevin Dunigan as Cop #2

Alex Ortiz as Cop #3

Eric Lange as Ace Video Cameraman

Kiff VandenHeuvel as Editor

Christina De Leon as Barred Door Woman

Jamie McShane as Freaked Motorist

Dig Wayne as Neighbor

Myra Turley as Female Neighbor

Merritt Bailey as Freelancer

Juan Fernandez as Reporter Ron De La Cruz

Lisa Remillard as Reporter Deena Rain

Manuel Lujan as Technical Director

Chris Wolfe as Reporter Joel Beatty

Austin Raishbrook as Stringer (uncredited)

Marc Raishbrook as Stringer (uncredited)

Dale Shane as Paramedic (uncredited)

Kathleen York as Jackie (uncredited)

Viviana Chavez as Desiree (uncredited)

Stephanie D'Abruzzo as Telephone Woman with Gloves (uncredited)

Emily Dahm as DUI Girl (uncredited)

Bill Blair as Control Room Switcher (uncredited)