Bong Joon Ho Director, Screenplay
Song Kang-ho Park Gang-du
David Anselmo Donald
Lee Jae-eung Se-jin
Bae Doona Park Nam-joo
Park Hae-il Park Nam-il
Jung Seo-yoon Woman with Long Hair (uncredited)
Ko A-sung Park Hyun-seo
Oh Dal-su The Monster (voice)
Scott Wilson Douglas
Ra Mi-ran Woman Stomping Her Feet (uncredited)
Yoon Je-moon Homeless Man
Yoo Seung-mok Taxi Driver
Kim Jin-seon Woman from Couple (uncredited)
Byun Hee-bong Park Hie-bong
Jeong In-gi Isolation Ward Doctor (uncredited)
Son Young-soon Grandmother from Bus (uncredited)
Kim Hak-seon Civilian Military Kim
Ko Chang-seok Nurse
Choi Tae-young Sound
Kim Nan-hee Woman from Duck Boat (uncredited)
Park Jin-woo Isolation Ward Constable (uncredited)
Lee Dong-yong 4th Mat 2 (uncredited)
Kim Byung-seo Camera Operator
Kim Roi-ha Yellow Suit at Funeral
Miky Lee Executive Producer
Choi Jae-sup Detective Agency Subordinate 1 (uncredited)
Kim Won-jung Stunts
Lee Byung-woo Original Music Composer
Park No-shik Inquiry Officer
Jang Seok-ho Props
Jeong Tae-sung Executive Producer
Min Kyung-jin Altar Security (uncredited)
Kim Bi-bi Isolation Ward Nurse 1 (uncredited)
Choi Dae-sung Man from Duck Boat (uncredited)
Koh Soo-hee Hostage nurse
Cho Sang-kyung Costume Design
Kwak Tae-yong Special Effects Makeup Artist
Ryu Seong-hie Production Design
Yim Pil-sung Fat Guevara
Paul Lazar American Doctor
Kim Sun-min Editor
Kim Woo-taek Executive Producer
Park Yong-ki Sound Re-Recording Mixer
Yang Gil-yeong Fight Choreographer
Yoo Yeon-soo District officer Mr. Jo (uncredited)
Kim Hyung-koo Director of Photography
Jung Sung-jin Visual Effects Director
Hwang Hyo-kyun Special Effects Makeup Artist
Shin Hyeon-jong Mr. Yoon's Friend (uncredited)
Jang Hee-chul Creature Design
Kang Jong-ik VFX Supervisor
Kwon Byung-gil Doctor from Isolation Ward 1 (uncredited)
Kwak Jung-ae Costume Design
Kevin Rafferty VFX Supervisor
Kim Won-jung Stunts
Yang Hae-gil Stunts
Kim Choo-wol Woman crying (uncredited)
Sean Garnhart Sound Designer
Baek Do-bin Fumigation Truck Skinny Man
Song Jong-hee Makeup & Hair
Seo Ji-oh Stunts
Joo Byeol Adaptation
Lee Seung-chul Production Sound Mixer
Lee Yong-kii Colorist
Yang Hong-sam Set Decoration
Kwon Hyeok-pung Fisherman 1 (uncredited)
Son Jin-ho Doctor from Isolation Ward 2
Coll Anderson Sound Designer
Kim Hyun-woo Co-Executive Producer
Seo Young-ju Protester
Lee Tae-yeong Stunts