Lee Je-hyun (15 Jul 2021). "슬의생2' 성동일 등장에 김갑수, 김해숙에 "네가 낳은 아이 맞아?" [Kim Gap-soo and Kim Hae-sook on Seong Dong-il's appearance in 'Sad Life 2', "Is this the child you gave birth to?"]. Star Today (بالكورية). Naver. Archived from the original on 2022-07-09. Retrieved 2021-07-15.
Kim Seong-hyeon (15 Sep 2021). "[단독] 성동일 '고스트 닥터' 합류… 비·김범과 차진 케미 예고" [[Exclusive] Sung Dong-il joins 'Ghost Doctor'... Rain, Kim Bum and Cha Jin chemistry preview]. YTN (بالكورية). Archived from the original on 2022-05-26. Retrieved 2021-09-15 – via Naver.
Jo Eun-mi (28 Sep 2021). "당신의 소원을 말하면' 지창욱X성동일X최수영 캐스팅..감동 힐링 드라마[공식]" ['If you tell me your wish' Ji Chang-wook X Sung Dong-il X Choi Soo-young Casting... A touching healing drama [Official]]. Herald POP (بالكورية). Archived from the original on 2022-07-09. Retrieved 2021-09-28 – via Naver.
Kim Soo-jin (16 May 2022). "성동일, '커튼콜: 나무는 서서 죽는다' 합류 [공식]" [Dongil Sung joins 'Curtain Call: Trees Die Standing' [Official]] (بالكورية). MT Star News. Archived from the original on 2022-05-28. Retrieved 2022-05-16 – via Naver.
Kang Da-yoon (4 May 2022). "권상우X임세미X성동일, '위기의 X' 출연…하반기 공개 예정 [공식]" [Kwon Sang-woo X Im Se-mi X Sung Dong-il to appear in 'X in Crisis'... Scheduled to be released in the second half [Official]] (بالكورية). My Daily. Archived from the original on 2022-05-28. Retrieved 2022-05-04 – via Naver.
Choi Yun-na (22 Jun 2022). "권상우·임세미·성동일→이이경·신현수·박진주…'위기의 X' 라인업 확정[공식]" [Kwon Sang-woo, Lim Se-mi, Seong Dong-il → Lee Yi-kyung, Shin Hyeon-su, Park Jin-joo… ‘X in Crisis’ lineup confirmed [Official]] (بالكورية). Sports Donga. Archived from the original on 2020-11-11. Retrieved 2022-06-22 – via Naver.
Lee Je-hyun (15 Jul 2021). "슬의생2' 성동일 등장에 김갑수, 김해숙에 "네가 낳은 아이 맞아?" [Kim Gap-soo and Kim Hae-sook on Seong Dong-il's appearance in 'Sad Life 2', "Is this the child you gave birth to?"]. Star Today (بالكورية). Naver. Archived from the original on 2022-07-09. Retrieved 2021-07-15.
Kim Seong-hyeon (15 Sep 2021). "[단독] 성동일 '고스트 닥터' 합류… 비·김범과 차진 케미 예고" [[Exclusive] Sung Dong-il joins 'Ghost Doctor'... Rain, Kim Bum and Cha Jin chemistry preview]. YTN (بالكورية). Archived from the original on 2022-05-26. Retrieved 2021-09-15 – via Naver.
Jo Eun-mi (28 Sep 2021). "당신의 소원을 말하면' 지창욱X성동일X최수영 캐스팅..감동 힐링 드라마[공식]" ['If you tell me your wish' Ji Chang-wook X Sung Dong-il X Choi Soo-young Casting... A touching healing drama [Official]]. Herald POP (بالكورية). Archived from the original on 2022-07-09. Retrieved 2021-09-28 – via Naver.
Kim Soo-jin (16 May 2022). "성동일, '커튼콜: 나무는 서서 죽는다' 합류 [공식]" [Dongil Sung joins 'Curtain Call: Trees Die Standing' [Official]] (بالكورية). MT Star News. Archived from the original on 2022-05-28. Retrieved 2022-05-16 – via Naver.
Kang Da-yoon (4 May 2022). "권상우X임세미X성동일, '위기의 X' 출연…하반기 공개 예정 [공식]" [Kwon Sang-woo X Im Se-mi X Sung Dong-il to appear in 'X in Crisis'... Scheduled to be released in the second half [Official]] (بالكورية). My Daily. Archived from the original on 2022-05-28. Retrieved 2022-05-04 – via Naver.
Choi Yun-na (22 Jun 2022). "권상우·임세미·성동일→이이경·신현수·박진주…'위기의 X' 라인업 확정[공식]" [Kwon Sang-woo, Lim Se-mi, Seong Dong-il → Lee Yi-kyung, Shin Hyeon-su, Park Jin-joo… ‘X in Crisis’ lineup confirmed [Official]] (بالكورية). Sports Donga. Archived from the original on 2020-11-11. Retrieved 2022-06-22 – via Naver.