Moon Woo-jin (; born February 19, 2009) is a South Korean child actor. He made his acting debut in 2016 and has since had roles in television series What's Wrong with Secretary Kim (2018), It's Okay to Not Be Okay (2020), and The Atypical Family (2024).
Life and career Moon Woo-jin was born on February 19, 2009 in Incheon, South Korea. In 2016, he made his first public appearance in Jeju Air's Space Museum CF then made his acting debut in 2016 with his special appearance on SBS TV series Our Gap-soon.
Moon is affiliated to T-One Entertainment artist management company. He started to gain more public recognition for his acting as the young male lead in 2018 drama What's Wrong with Secretary Kim. In 2020, Moon appeared in KBS family weekend drama Once Again and got awarded as the best young actor for the first time at the 2020 KBS Drama Awards. Moon was appointed as Incheon's public relations ambassador. In September 2021, he participated in 'Save the Heart' contest serving as a public model for the "Let's share our hearts" campaign. In 2025, he portrayed his first villain role in his acting career through the Disney+ original drama Unmasked, where he portrayed a brutal serial killer without blood or tears.
Filmography Film + Year Title Role Notes 2020 Peninsula Dong-hwan 2022 MoonParkJiHo Ji-ho short film 2023 Where Would You Like to Go? Park Hae-soo 2024 Hijack 1971 Lee Han-bong 2025 Dark Nuns Hee-joon The Accordion Door Ji-soo
Television series Year Title Role Notes 2016 Our Gap-soon Extra Episode 50, 53, and 55 The Person Who Gives Happiness Young Lee Geon-u 2017 Suspicious Partner Young Ji Eun-hyuk Unknown Woman Hysterical child Bad Thief, Good Thief Young Jang Min-jae The King in Love Young Wang Won Live Up to Your Name Young Heo Im 2017–2018 Man in the Kitchen Young Lee So-won Oh, the Mysterious Han Kang 2018 My Contracted Husband, Mr. Oh Young Oh Jak-doo Come and Hug Me Young Chae Do-jin About Time Young Lee Do-ha What's Wrong with Secretary Kim Young Lee Yeong-joon Life on Mars Kyung Ho Episode 6 My ID Is Gangnam Beauty Young Do Kyeong-seok The Beauty Inside Han Se-gye Episodes 8 and 9 2018-19 Gangnam Scandal Young Hong Se-hyeon 2019 The Fiery Priest Young Kim Hae-il Kill It Young Kim Soo-hyun Arthdal Chronicles Young Ta GonWatcher Young Kim Young-goon Vagabond Cha Hoon Episodes 1, 7, and 9 My Country: The New Age Young Seo Hwi 2020 Once Again Kim Ji-hoon The King: Eternal Monarch Young Kang Shin-jae / Kang Hyeon-min It's Okay to Not Be Okay Young Moon Gang-tae Alice Young Park Jin-gyeom Episodes 1 and 7 2021 Joseon Exorcist Grand Prince Kang-nyeong 2 episodes The Devil Judge Young Kang Yo-han School 2021 Young Gong Ki-joon 2022 Kiss Sixth Sense Young Cha Min-hoo 2023 Oh! Youngsim Kang Woo-chan Episode 2 Castaway Diva Young Kang Bo-geol / Young Jung Ki-ho Drama Special - Dog Days of Summer Kim Yi-jun Season 14, episode 5 2024 The Atypical Family Han Jun-woo Dear Hyeri Young Jung Hyun-oh The Fiery Priest 2 Lee Sang-yeon 2025 Unmasked Son Jun-Yeong Episode 2 & 3 My Dearest Nemesis Young Ban Joo-yeon When Life Gives You Tangerinesteen Yang Gwan-sikYou and Everything Else Young Cheon Sang-heok Spring of Youth Young Sa-gye 2026 The Scarecrow teen Cha Si-young
Music video appearances + Year Title Artist Length 2017 "Beautiful" Wanna One 2019 "Forever Love" Min Kyung-hoon "Thumbs Up" Momoland
Awards and nominations Award ceremony Year Category Nominated work(s) Result Ref. Baeksang Arts Awards 2025 Best New Actor – Film Dark Nuns Buil Film Awards 2025 Best New Actor Busan International Film Festival 2025 Vision Award for Actor of the Year The Accordion Door KBS Drama Awards 2020 Best Young Actor Once Again 2023 Dog Days of Summer SBS Drama Awards 2019 Vagabond 2024 The Fiery Priest 2
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