The Whispering (2018)

So Joo-yeonEun-ha Kim Min-gueMin-woo Choi Hee-jinJeong-yoon Kim Tae-minDong-il Kim YoungWoo-sung Shin Jae-seungByeong-yoon Park JinHae-guk Kang Se-jungMi-joo Lee You-miByun Ji-eun Lee Han-seoChairman Choi's Daughter Ji Dae-hanMan at the Internet Cafe Jin Yong-ukHomeroom Teacher Seo Min-chaeFemale Teacher Im Han-binEun-Sung Kyeong-hee HanEun-ha's mom Seo Ki-wookStudent at the Internet Cafe 1 Kim Hyung-taeStudent at the Internet Cafe 2 Park Ji-yeonClient at the Internet Cafe 2 Park Ji-hyeClient at the Internet Cafe 3 Park Su-kyeongClient at the Internet Cafe 4 Sim KyuPolice Officer 1 Kim Min-seongPolice Officer 2 Bae So YeonEscape Room Cafe Manager Sim Mi-soEscape Room Cafe Staff Hwang Shin-hyeClassroom Ghost Cameo Jeon Hyeon-sooGhost 1 Shin Ha-rangGhost 2 Kim Ga-aeGhost 3 Lee Sang-kangGhost 4 Kim Hyun-wooGhost 5 Su-hyeon HongGhost 6 Yoo In-jaeMaster Byeon Se-inCitizen 1 Seong Won-jeongCitizen 2 Kim Yu-jinCitizen 3 Kim Mi-hwaCitizen 4 Heo Yeong-cheolCitizen 5 Gwe Dok-ranCitizen 6 Lim Min-sunCitizen 7 Jeon Hyung-juCitizen 8 Joo Dong-wookCitizen 9 Sang-sun KimCitizen 10 Kim Jeong-hwiCitizen 11 Song Shi-yeolCitizen 12 Lee Yeong-eunCitizen 13 Choi Won-hyukCitizen 14 Hong Ji-eunCitizen 15 Choi Mi-raeCitizen 16 Kang Na-YoungCitizen 17 Nam Young-ranCitizen 18 Hong Hyun-kyeongCitizen 19 Yeo Eun-chaeCitizen 20 Cha Eun-wooCitizen 21 Kim Jeong-sookCitizen 22 Seo Kyoung-hoonStudent 2 Kong Jong-hyeonStudent 3 Min Seon-jaeStudent 4 Kim Jin-youngStudent 5 Lee Dong-gyuStudent 6 Hyo-jun ParkStudent 7 Moon Jeong-binStudent 8 Kim Hyo-wonStudent 9 Kim Da-jinStudent 10 Lee Dong-heeStudent 11 Choi Seo-hyunStudent 12 Kim Soo-binStudent 13 Yoon Ji-wonStudent 14 Lee Yeon-wooStudent 15 Yoon Ji-inStudent 16 Lee Won-sangStudent 17 Lee A-riStudent 18 Lee Ji-wonStudent 19 Si-eun KimStudent 20 Song Jeong-hyukStudent 21 Shin Eun-jungStudent 22 Oh Hye-jinStudent 23 Kim Min-suStudent 24 Lee Jung-ahStudent 25 Yeon Seung-juStudent 26 Oh Won-junStudent 27 Han Dong-hoonStudent 28 Kim Yeong-GyuStudent 29 Choi Jae-minStudent 30 Min Da-eunStudent 31 Kim Se-yeonStudent 32 Lee Pil-moChairman Choi Lee Young-eeSpecial Appearance Alyssa SoebandonoMiya Dude HarlinoHinata Sayuri MatsumuraSo-yeon Rima MatsudaYoon-hee Kurumi ShimizuJin-hee Aki AsakuraYeong-ju Yuki KashiwagiJu-yeon Sakurako OkuboLia