The series is about a grim reaper named Kokdu (Kim Jung-hyun) who visits the mortal world every 99 years to punish humans. He meets Dr. Han Gye-jeol (Im Soo-hyang), a doctor with mysterious abilities, and starts working as a visiting doctor.[3]
Kokdu: an underworld god who has been cursed to lead the deceased in the afterlife after angering the Creator, and has to enter a human body that looks just like him to carry out the murders of immoral people.[1][10][11]
Do Jin-woo: a successful surgeon and Gye-jeol's fellow hospital worker, who is possessed by Kokdu.[12]
Oh-hyeon: Seol-hee's lover who was cursed by the Creator to become Kokdu.[13]
On October 31, 2022, the production team announced that filming for the series was halted due to the death of actor Lee Ji-han who died on October 29 during the Seoul Halloween crowd crush tragedy, and would resume at a later date after reorganization. It was reported that Lee took the role of Jung Yi-deun, the ex-boyfriend of Im Soo-hyang's character.[35][36] On November 7, an official from MBC confirmed that filming would resume on that day, and the production team decided to find a replacement for the late actor after much deliberation.[37][38] It was later announced that Lee Jung-joon [ko] would join the cast, taking over Lee Ji-han's role.[23]
^Jin Byung-hoon (January 25, 2023). "'꼭두의 계절' 인물관계도 및 등장인물…몇부작?" ['Season of Kokdu' character relationship diagram and characters… how many episodes?]. NBN TV (in Korean). Archived from the original on February 20, 2023. Retrieved January 29, 2023.
^Kang Seo-jung (January 19, 2023). "'꼭두의 계절'→'꽃선비'까지..해외로 뻗어나가는 K-드라마" [From 'Season of Kokdu' to 'Flower Scholar'..K-drama expanding overseas] (in Korean). Archived from the original on January 28, 2023. Retrieved January 29, 2023 – via Naver.
^"Drama Korea Terbaru 2023" [Latest Korean Drama 2023]. Viu (in Indonesian). March 7, 2023. Archived from the original on March 17, 2023. Retrieved March 17, 2023.
^Jang Su-jeong (November 14, 2022). "안우연, '꼭두의 계절' 출연…'겉바속촉' 형사役" (in Korean). Dailian. Archived from the original on November 14, 2022. Retrieved November 14, 2022 – via Naver.
^Park Ah-reum (November 16, 2022). "김인권 '꼭두의 계절' 합류, 김정현과 재회[공식]" (in Korean). Newsen. Archived from the original on November 16, 2022. Retrieved November 16, 2022 – via Naver.
^Yoo Jeong-min (December 6, 2022). "손소망, '꼭두의 계절' 출연 확정…김다솜과 절친 케미" [Son So-mang confirmed to appear in 'Season of Kkokdu'… Kim Dasom and best friend chemistry] (in Korean). iMBC. Archived from the original on December 6, 2022. Retrieved December 6, 2022 – via Naver.
^Lee Joon-hyun (January 27, 2023). "정아미, '꼭두의 계절' 합류…김정현과 모자호흡" (in Korean). Ten Asia. Archived from the original on January 27, 2023. Retrieved January 27, 2023 – via Naver.
^Kim Bo-young (November 7, 2022). "'꼭두의 계절' 측 "오늘(7일) 촬영 재개…故 이지한 후임 물색 중" [공식]" ['Season of Kokdu' side "Today (the 7th) filming resumes… Looking for a replacement for the late Lee Ji-han" [Official]] (in Korean). E Daily. Archived from the original on February 20, 2023. Retrieved November 7, 2022 – via Naver.
^Kim So-yeon (November 7, 2022). "'꼭두의 계절' 측 "오늘(7일) 촬영 재개…故 이지한 후임 찾는 중"" ['Season of Kokdu' side "Today (7th) filming resumes… Searching for the successor of the late Lee Ji-han] (in Korean). Maeil Business Star Today. Archived from the original on February 20, 2023. Retrieved November 7, 2022 – via Naver.
"Ep. 1" (in Korean). Nielsen Korea. January 27, 2023. Archived from the original on February 20, 2023. Retrieved January 28, 2023.
"Ep. 2, 4–16" (in Korean). Nielsen Korea. Archived from the original on January 29, 2023. Retrieved January 29, 2023 – via Daum.
"Ep. 3" (in Korean). Nielsen Korea. February 3, 2023. Archived from the original on February 4, 2023. Retrieved February 4, 2023.
^Cha, Hye-rin (December 30, 2023). [2023 MBC 연기대상] '연인' 남궁민, 이변 없이 대상 수상… "큐 사인이 가장 행복한 배우" [[2023 MBC Drama Awards] 'My Dearest' Namkoong Min wins the grand prize without any incidents..."Cue sign is the happiest actor"] (in Korean). MBC Entertainment. Archived from the original on December 30, 2023. Retrieved December 30, 2023 – via Naver.
^Cha, Hye-rin (December 30, 2023). [2023 MBC 연기대상] '열녀박씨' 이세영-'연인' 안은진, 눈물의 '최우수연기상' 수상 [[2023 MBC Drama Awards] 'The Story of Park' Lee Se-young and 'My Dearest' Ahn Eun-jin won the 'Best Actress Award' by tears]. iMBC (in Korean). Archived from the original on December 31, 2023. Retrieved December 31, 2023.