Choi, Song-hee (June 1, 2021). "[인터뷰] '파이프라인' 이수혁 "'배우'라는 말이 어울릴 수 있도록"" [[Interview] 'Pipeline' Lee Soo-hyuk "So the Word 'Actor' Fits Well"]. Ajunews (in Korean). Retrieved June 9, 2021.
Kim, Ha-kyun (August 8, 2017). "이수혁, 8월 10일 군 입대 소식에 네티즌 "잘 다녀와요"" [Lee Soo-hyuk, Enlistment on August 10th, Netizens Say, "Comeback Safely"]. Asiae (in Korean). Retrieved June 9, 2021.
Jang, Chang-hwan (November 18, 2011). "이수혁, '뱀파이어 아이돌' 출연 확정..'강민경 상대役'" [Lee Soo-hyuk Confirmed to Appear in 'Vampire Idol'... 'Opponent Kang Min-kyung']. Osen (in Korean). Retrieved June 9, 2021.
Jang Ah-reum (December 18, 2020). "[공식입장] 박보영·서인국·이수혁·강태오·신도현, '멸망이 들어왔다' 확정" [[Official Position] Bo-Young Park, In-Guk Seo, Su-Hyeok Lee, Tae-Oh Kang, and Do-Hyun Shin confirmed that 'Destruction Has Come]. news1 (in Korean). Retrieved December 18, 2020 – via Naver.
Lee Seung-rok (November 8, 2021). "[공식] YG "이수혁, MBC '내일' 출연 확정" [[Official] YG: "Lee Soo-hyuk is confirmed to appear on MBC's 'Tomorrow'"] (in Korean). My Daily. Retrieved November 8, 2021 – via Naver.
Jung Jin-young (September 19, 2022). "이수혁, 오디오 드라마 '어서오세요, 휴남동 서점입니다' 출연 확정" [Lee Soo-hyuk confirmed to appear in audio drama 'Welcome to Hunam-dong Bookstore] (in Korean). Ilgan Sports. Retrieved September 19, 2022 – via Naver.
Hong Se-young (July 12, 2023). "전종서·김무열·지창욱→박지환 '우씨왕후' 출연확정, 내년 공개 [공식]" [Jeon Jong-seo, Kim Moo-yeol, Ji Chang-wook → Park Ji-hwan confirmed to appear in 'Queen Wu', released next year [Official]] (in Korean). Sports Donga. Retrieved July 12, 2023 – via Naver.
Jang Ah-reum (September 4, 2023). "이수혁·이다희·아린, 웹툰 원작 드라마 'S라인' 확정…내년 공개" [Lee Soo-hyuk, Lee Da-hee, and Arin confirmed for webtoon-based drama 'S Line'... released next year] (in Korean). News1. Retrieved September 4, 2023 – via Naver.
Shin So-won (September 14, 2021). "최지우X차인표X이장우X이수혁, '시고르 경양식' 예능 출연" [Ji-Woo Choi X In-Pyo Cha X Jang-Woo Lee X Soo-Hyeok Lee to appear on variety show 'Siggor Gyeongsik']. Ten Asia (in Korean). Retrieved September 14, 2021 – via Naver.
Lee Soo-yeon (January 31, 2023). "이수혁이 보는 '동거 커플'이란..."따뜻한 공감력 발휘" ('결혼말고동거')" [What Lee Soo-hyeok sees as a 'cohabiting couple'..."Exercise warm sympathy" ('Cohabiting without marriage')] (in Korean). TV Report. Retrieved January 31, 2023 – via Naver.