Ahn Seo-hyun as Mija

Tilda Swinton as Lucy Mirando / Nancy Mirando

Paul Dano as Jay

Steven Yeun as K

Jake Gyllenhaal as Johnny Wilcox

Giancarlo Esposito as Frank Dawson

Byun Hee-bong as Hee-bong

Lily Collins as Red

Daniel Henshall as Blond

Devon Bostick as Silver

Yoon Je-moon as Mundo Park

Shirley Henderson as Jennifer

Choi Woo-shik as Kim

Sheena Kamal as Stylist 2007 / 2017

Michael Mitton as Make-Up Artist 2007

Colm Hill as Sarcastic British Reporter

Kathryn Kirkpatrick as Epicurean Reporter

Jose Carias as Señor Villacorta

Nancy Amelia Bell as Elderly Reporter

Lee Jung-eun as Okja (voice) / Woman In Wheelchair

Kim Jae-in as Young Mija

Choi Hee-seo as Choi Female Interpreter

Jang Ji-woong as Chang Cameraman

Lee Bong-ryeon as Receptionist

Park Ki-seon as Elderly Security Guard

Yoon Kyung-ho as Mirando Employee

Cho Wan-ki as Mirando Employee

Kyul Hwi as Mirando Employee

Kwak Jin-seok as Mirando Employee

Park Ji-hoon as 6th ALF

Lee Jae-hyeok as Spectator With Camera

Clayton Elliot Jones as U.S. Soldier

Seoyoung Lim as Pink Pig - Part Time Student

Jungsook Park as Old Lady Pushing Wheelchair

Jooman Hong as Underpass Police

Kyungwook Lim as Underpass Police

Seungchang Lee as Underpass Police

Byeonghee Lee as Underpass Police

Hyunwoo Choi as Underpass Police

Kim Moon-hak as Riverside Expressway Police

Park Keun-rok as Riverside Expressway Police

Daehyun Kim as Bulk Employee

Gwangjae Woo as Bulk Employee

Wonjin Jang as Bulk Employee

Hyunzun Yu as Bulk Employee

Yangwon Kim as Bulk Employee

Yonghee Kim as Bulk Employee

Dylan Ratigan as American News Anchor

Milo Shandel as Mirando Executive

Mikaela Kingsbury as TV Reporter

Sangyoon Lee as CNN Cameraman Korea

Bae Young-ran as Female Police

Park Jeong-gi as Reporter Jee

Yoon Jung-ro as Reporter Yoon

Kim Woo-hyeon as Reporter Kim

Kim Chul-moo as Fat Detective

Seo Woo-sik as Mirando Branch President

Yerin Shin as Cabin Attendant

Erik De Boer as Banana Guy in JFK

Stephen Clee as Man Who Spanks Okja in JFK

Pavel Hajek as Okja Transport

David Congourdeau Nicolas as Okja Transport

Lucas Körmer as Laboratory Worker

Ahn Seong-bong as Alfonso Transport

Timmo Polajev as Alfonso Transport

Steven Garr as Man in White Gown

David Bloom as Middle-Aged Man Taster

Cory Gruter-Andrew as Teenage Taster

Barbara Wallace as Middle-Aged Woman Taster

Frans Weterrings IV as Boy Eating Jerky

Boyd Ferguson as Translator

Niall Cunningham as ALF High School Student

Marian Volk as ALF Woman in 20s

Conor Reeves as Employee Next to Silver

Adam Auslander as Balloon Pig Holder

Waris Ahluwalia as Waris

T. Sahara Meer as ALF Middle-aged Woman

J.C. Williams as Black Chalk Mercenary

Hye-Jo Yu as Female Japanese-American Nurse

Lorne Edward Oliver as Old Security Guard at Feedyard

Alex Kabel as Feedyard Worker

Amir Ardalan Latifi as Feedyard Worker

Jose Vargas as Slaughterhouse Worker

Elizabeth Urrea as Slaughterhouse Worker

Luis Javier as Slaughterhouse Worker

Phillip Garcia as Diego Alejandro

Andreas Fronk as Black Chalk Mercenary

Jack Lyons as Black Chalk Mercenary

Bettina Skye as Pig Balloon Handler (uncredited)

Kristoffe Brodeur as NYPD (uncredited)

Myles Humphus as Black Chalk Mercenary (uncredited)

Lena Avgust as Parade Goer (uncredited)

Jamar Greene as Commanding Officer (uncredited)

Michael D. Joseph as Protestor (uncredited)

Eha Urbsalu as Lucy Mirando Double (uncredited)

Rebecca Husain as Jennifer's Assistant (uncredited)

Carl Montoya as Blond Double (uncredited)

Martin Lo Rimorin as ALF Soldier (uncredited)

Amber Snow as Nancy Mirando's Personal Stylist (uncredited)

Ann Evans as Nancy Mirando's Personal Hair Stylist (uncredited)

Rickland Powell as Pig Balloon Handler (uncredited)

Michelle Clarke-Brown as Supervisor (uncredited)

Justin McGriff as Parade Patron (uncredited)

Lynn Marocola as NYPD Police Officer (uncredited)

Jason Scott Nelson as Translator (uncredited)