"In a world where an AI programme allows people to communicate with their deceased loved ones, a flight attendant and a mother question the meaning of reality and humanity."
Tang Wei
as Bai Li
Suzy
as Koo Jeong-in
Park Bo-gum
as Park Tae-ju
Jung Yu-mi
as Seo Hae-ri
Choi Woo-shik
as Kim Hyun-soo
Gong Yoo
as Sung-jun
Tang Joon-sang
as Choi Jin-gu
Seong Byeong-suk
as Song Jeong-ran
Choi Moo-seong
as Lee Yong-sik
Lee Eol
as Hae-ri's Father
Kang Ae-sim
as Hae-ri's Mother
Kim Sung-ryung
as Gil-soon
Park Hee-von
as Stella
Anupam Tripathi
as Hanan
Darcy Paquet
as Danny
Jang Yoon-jung
as Yong-sik's Wife
Song Duk-ho
as Yong-sik's Son
Jang Sung-yoon
as Yong-sik's Daughter
Nina Paw Hei-Ching
as Hwa-ran
Park Yeon-woo
as Male Employee at the Airport
Min Ji-a
as Tae-ju's Doctor
Kang Jin-ah
as Investigative Detective
Kim Geu-lim
as Hae-ri's Colleague
Park Mi-hyeon
as Hyun-mi
Jo Hee-bong
as Tae-ju's Senior on the Subway
Jeon Su-ji
as Jeong-in's Colleague on the Subway
Jeon Woon-jong
as Senior Purser
Jeong Seong-in
as Jeong-in's Colleague
Son Kyoung-won
as Taxi Driver
Lee Nam-gyeong
as Young Hae-ri
Moon Jung-woong
as Rehabilitation Therapist
Park Hong-yeol
Director of Photography
Park Kwan-su
Executive Producer
Kim Tae-yong
Writer
Yun Se-yeong
Assistant Director
Kang Yi-kwan
Adaptation
Seo Sung-kyung
Production Design
Makeup & Hair
Park Dae-hun
Special Effects Supervisor
Lim Wang-sub
Martial Arts Choreographer
Choi Yong-jae
Key Grip
Oh Jung-wan
Kim Byung-seo
Bang Jun-seok
Original Music Composer
Noh Kyung-hee
Park Jun-yong
Props
Han Myung-hwan
Sound Supervisor
Kim Hyeong-yong
Lighting Director
Kim Jung-woo
Set Decoration
Min Ye-ji
Ham Hyun-joo
Costume Design
Kim Hyung-joo
Editor
Kim Sung-jin
Kim Seung-gyu
Song Jong-hee
Park Young-sik
Song Kyung-min
Ahn Bock-nam
Production Sound Mixer
Shin Eun-hee
Art Direction
You Cheong
Jang Joo-yeon
Line Producer
Lee Bok-seon
Director
Lee Seung-bok
Producer
Cho Il-hyeong
Co-Executive Producer
Lee Jae-woo
Raad Hourani
Rigging Gaffer
Lee Geum-yeol
Boom Operator
Park Byeong-ju
VFX Supervisor