Josh Brolin Lt. Det. Christian F. "Bigfoot" Bjornsen
Eric Roberts Michael Z. Wolfmann
Reese Witherspoon Deputy D.A. Penny Kimball
Owen Wilson Coy Harlingen
Benicio del Toro Sauncho Smilax
Katherine Waterston Shasta Fay Hepworth
Joaquin Phoenix Larry "Doc" Sportello
Jena Malone Hope Harlingen
Belladonna Clancy Charlock
Martin Short Dr. Rudy Blatnoyd, D.D.S.
Ed Begley Jr. Thanks
Paul Thomas Anderson Writer, Director, Producer
Timothy Simons Agent Borderline
Maya Rudolph Petunia Leeway
Michael Kenneth Williams Tariq Khalil
Wilson Bethel LAPD Officer #1
Jim Palmer Stunts
Jeannie Berlin Aunt Reet
Grace Lambert Pyke Key Costumer
Martin Donovan Crocker Fenway
Hong Chau Jade
Sam Jaeger Agent Flatweed
Catherine Haena Kim News Reporter
Myke Schwartz Stunt Coordinator
Sasha Pieterse Japonica Fenway
Tom McComas Stunts
David 'Goldy' Goldsmith Video Assist Operator
Emma Dumont Zinnia
Peter McRobbie Adrian Prussia
Dennis Keiffer Stunts
Jillian Bell Chlorinda
Anders Holm LAPD Officer #2
Michael Cotter Rhus Frothingham
Eli Bush Co-Producer
Ken Edling Judge (uncredited)
Keith Jardine Puck Beaverton
Scott Rudin Executive Producer
Pearl Minnie Anderson Thanks
Martin Dew Dr. Buddy Tubeside
Wilson Webb Still Photographer
Mo Henry Negative Cutter
Elaine Tan Xandra
Matthew Wood Supervising Sound Editor
Jeremy Fry Stunts
Diana Elizabeth Torres Lourdes (uncredited)
Jack Kelly Burke Stodger (archive footage)
Colin Anderson Steadicam Operator
Alina Gatti Howdy Doper's Phone Voice (voice)
Anthony D. Parrillo Set Designer
Richard Quinn Supervising Dialogue Editor
Daniel Lupi Producer, Unit Production Manager
Adam Somner Executive Producer, First Assistant Director
Chris Scarabosio Sound Designer, Supervising Sound Editor, Sound Re-Recording Mixer
Kenny Richards Stunts
David Acord Sound Re-Recording Mixer
Erica Sullivan Dr. Lily Hammer
Dan Muscarella Color Timer
Jonny Greenwood Original Music Composer
Jefferson Mays Dr. Threeply
Yvette Yates Redick Luz
Frank Rinella Foley Supervisor, Foley Artist
Jimmy N. Roberts Stunts
Robert Elswit Director of Photography
David Crank Production Design
Steve Slanec Dialogue Editor
John Pritchett Sound Mixer
Samantha Lemole Golden Fang Mother
Danny Durr Lighting Technician
Shannon Collis Bambi
Michael Bauman Chief Lighting Technician
Monty L. Simons Stunts
Mark Aaron Wagner Stunts