Dark Hole

Dark Hole is a South Korean television series starring Kim Ok-vin and Lee Joon-hyuk. The fifth series of OCN's "Dramatic Cinema" project which combines film and drama formats, premiered on OCN TV on April 30, 2021.

Synopsis
Dark Hole is about a detective and a wrecker driver who have to fight for their lives against mutants that are created when humans breathe mysterious dark smoke from a sinkhole.

Main

 * Kim Ok-vin as Lee Hwa-sun, a detective grieving over the death of her husband
 * Lee Joon-hyuk as Yoo Tae-han, a former detective turned wrecker driver

Supporting

 * Park Keun-rok as Choi Seung-tae
 * Yoon Jung-hoon as Woo-sang
 * Jang Sung-won as Lee Young-tae
 * Kim Do-hoon as Lee Jin-seok
 * Im Won-hee as Park Soon-il
 * Zo Zee-An as Cho Hyun-ho
 * Jeon Young-mi
 * Kim Do-hoon as Lee Jin-seok
 * Cho Ja-In as Cho Hyun-Ho
 * Bae Jung-hwa
 * Oh Yu-jin as Han Dong-rim
 * Kim Byung-ki as Choi Kyeong-soo
 * Kim Han-jong as Nam Yeong-sik
 * Kim Byung-ki as Choi Kyung Soo
 * Bae Jung-hwa as Han Ji-soo
 * Kim Su-ol as Yoon Ji-Ae
 * Lee Ha-eun as Yoon Saet-byeol
 * Song Sang-eun as Kim Seon-nyeo
 * Kim Kang-min as Min-gyu

Special appearances

 * Tak Jae-hoon as Restaurant Owner
 * Ahn Eun-jin as So Jung-hwa
 * Kim Han Jong as Nam Young Sik
 * Jung Hae-kyun as Lim Joo-ho
 * Won Choon gyu as Nam Jin-Il
 * Heo Hyeong-gyu as Kang Sung-Bum
 * Choi Jung-kyu as Yoo Kang-soo

Production
OCN announced its lineup of 2021 drama slate in November 2020 which included the fifth installment of the 'Dramatic Cinema' project, Dark Hole.

Casting
OCN revealed the casting news of Kim Ok-vin and Lee Joon-hyuk on October 9, 2020. On December 11, 2020, Yoon Jung-hoon was confirmed to join the cast and on December 14, 2020, Jang Sung-won reportedly joined the cast. The photos from the first script reading were released by OCN on March 2, 2021.