2. Potato Research Institute
![Kang Tae-oh in a still from Extraordinary Attorney Woo.](https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2024/03/22/d0b94a70-346f-4cc9-adf5-9cef9efe6141_dd35b25b.jpg)
News of Kang’s potential casting dropped earlier this week, a day before he was discharged from his obligatory military service in South Korea, having enlisted in November 2022.
Kang is considering the part of So Baek-ho, who becomes the new director of a potato research institute in the countryside.
![Lee Sun-bin in a still from Work Later, Drink Now.](https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2024/03/22/19b82558-ed65-4b9e-867f-b88fabb8ff2b_eb25a8a1.jpg)
Lee is being offered the role of Kim Mi-kyung, a long-term employee of the institute who has been working there for 12 years.
The series will be written and directed by Kim Ho-soo and Kang Il-soo respectively; the duo were behind the series Rookie Historian Goo Hae-ryung with Shin Sae-kyung and Cha Eun-woo.
Potato Research Institute is being eyed for a late 2024 or early 2025 release.
3. The Number You Have Dialed
![Yoo Yeon-seok in a still from Dr. Romantic season 3.](https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2024/03/22/8ad60eb0-a431-4b5f-856b-c91aa13aa449_3441a1b0.jpg)
Based on a web novel of the same name, the drama will follow the story of a picture-perfect couple thrown into chaos when the husband receives a threatening call telling him that his wife has been kidnapped.
Yoo has been offered the part of Baek Sa-eon, a former television anchor who is now the youngest spokesperson in the Blue House (the Korean presidential office) and a promising politician.
Chae is considering playing Hong Hee-joo, Sa-eon’s wife, a sign interpreter who suffers from aphasia owing to a traumatic incident in her childhood.
K-drama casting latest: Han So-hee, Ryu Jun-yeol eyed for mysterious drama
K-drama casting latest: Han So-hee, Ryu Jun-yeol eyed for mysterious drama
The Number You Have Dialed will be aired on MBC.
4. Signal 2/Flex X Cop 2/A Shop for Killers 2
A raft of sequel series have been announced in the past week. The biggest news was the revelation that star writer Kim Eun-hee is currently scripting a second season of the acclaimed fantasy investigation series Signal.
![(From left) Lee Je-hoon, Kim Hye-soo and Cho Jin-woong in Signal.](https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2024/03/22/ca0ec7d6-6314-4218-b2c0-97113a5a59b7_d40e4bb7.jpg)
The show was one of the original Korean cable hits back in 2016 and fans have long clamoured for a second season, particularly given that the show opens the door for one in its final episode.
Starring Kim Hye-soo, Lee Je-hoon and Cho Jin-woong, the show follows three detectives investigating violent crimes but living in two different time periods. A magical walkie-talkie allows them to cross that temporal divide as they help each other to solve the crimes in their respective eras.
![Kim Hye-jun (left) and Lee Dong-wook in a still from A Shop for Killers.](https://cdn.i-scmp.com/sites/default/files/d8/images/canvas/2024/03/22/da36fd15-41a1-4f3b-9687-ea6129beff34_595de0ff.jpg)
Stars Ahn Bo-hyun, who plays a corporate heir who winds up becoming a police officer, and Park Ji-hyun, who plays the long-suffering detective he is partnered with, are currently negotiating their returns to the show. A script for a second season is under way and scheduling is being discussed.