Sori: Voice from the Heart
While desperately searching for his missing daughter, Hae-kwan comes across an AI satellite robot that remembers sounds from all over the world. Rejuvenated by the robot's abilities, Hae-kwan begins to track down his daughter's voice. As they continue their journey, they form an unforgettable bond.
| Actor | Role |
|---|---|
 Lee Sung-minHae-Gwan | Hae-Gwan |
 Shim Eun-kyungSori (voice) | Sori (voice) |
 Lee HaneeJi-yeon | Ji-yeon |
 Chae Soo-binYoo-joo | Yoo-joo |
 Lee Hee-junJin-ho | Jin-ho |
 Kim Won-haeGoo-cheol | Goo-cheol |
 Ryu Jun-yeolUnderground Singer | Underground Singer |
 Jeon Kuk-hwanPresident Go | President Go |
 Kwak Si-yangHyeon-soo | Hyeon-soo |
 Jeon Hye-jinHyun-sook | Hyun-sook |
 Rie Young-zinYoo Sung-jin | Yoo Sung-jin |
 Kang Jin-ahJang Geun-yeong | Jang Geun-yeong |
 Nam Yeon-wooNIS agent | NIS agent |
 Lee Seung-joonNIS agent | NIS agent |
 Yang Kyung-wonNIS agent | NIS agent |
 Lee Hyun-gulPolice | Police |
 JJ GrahamU.S. military officer | U.S. military officer |
| YYoo Chang-sookGrandmother | Grandmother |
 Han Ji-wonYoo-joo's Friend | Yoo-joo's Friend |