Park Ah-reum (May 13, 2022). "'동백꽃' 까불이 이규성 '왜 오수재인가' 전격 합류[공식]" [Camellia Flower' Kabul Lee Kyu-seong's 'Why Oh Soo-jae' suddenly joined [Official]] (in Korean). Newsen. Retrieved May 13, 2022 – via Naver.
Park, Jae-hwan (December 21, 2023). 넷플릭스 '경성크리처' 제작발표회 현장... "박서준, 한소희, 그리고 괴물" [Netflix's 'Gyeongseong Creature' production presentation site... "Park Seo-joon, Han So-hee, and the Monster"] (in Korean). KBS Media. Retrieved December 24, 2023 – via Naver.
n.news.naver.com
Shin Ji-won (February 7, 2023). "이규성, '조선변호사'출연 확정...우도환과 절친 호흡 '기대↑'" [Lee Kyu-seong confirmed to appear in 'Chosun Lawyer'...Woo Do-hwan and best friend breathing 'expectation ↑'] (in Korean). Ten Asia. Retrieved February 7, 2023.
m.entertain.naver.com
Park, So-jin (August 17, 2024). 이규성, ‘새벽 2시의 신데렐라’ 캐스팅…명품 신스틸러 ‘기대’ [Lee Kyu-sung, cast in 'Cinderella at 2 AM'...'Expectations' for a luxury scene stealer] (in Korean). MBN. Retrieved August 21, 2024 – via Naver.
