Lim Dong-hyun (born April 11, 1995), known professionally as Lee Do-hyun, is a South Korean actor. He first gained recognition for his supporting role in Hotel del Luna (2019), and went on to star in the television series 18 Again (2020), Sweet Home (2020–2024), Youth of May (2021), The Glory (2022–2023), and The Good Bad Mother (2023), as well as the film Exhuma (2024).

Filmography

• 2024Exhuma — Yoon Bong-gil
• Death's Game — Jang Gun-woo
• The Good Bad Mother — Choi Kang-ho
• 2022Reincarnation Love — Jeon Sang-tae
• The Glory — Joo Yeo-jeong
• Beyond Evil — Young Lee Dong-shik
• Melancholia — Baek Seung-yoo
• Youth of May — Hwang Hee-tae
• 18 Again — Hong Dae-young / Go Woo-young
• Sweet Home — Lee Eun-hyeok
• Hotel Del Luna — Go Chung-myung
• 2019Scouting Report — Jae Won
• The Great Show — Teen Wi Dae-han
• Clean with Passion for Now — Gil O-Dol
• Still 17 — Dong Hae-Beom
• Prison Playbook — Young Lee Jun‑ho, Creator
• 2016Summer Night — Lim Dong-Hyun
• KBS Drama Special
• KBS Drama Awards — Host
• Grand Galaxy Hotel — Eun-ha
• Nambeol — Bo-kyeong
• The Man Called H
• Viva La Vida — Tae-yang

Appearances as themselves (4)

• You Quiz on the Block — Self
• Men on a Mission — Self
• Baeksang Arts Awards — Self
• Running Man — Self