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Ryeoun
Ryeoun
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Go Yoon-hwan (Korean고윤환; born August 26, 1998),[1] better known by his stage name Ryeoun (려운), is a South Korean actor. He is best known for his roles in 18 Again (2020), The World of My 17 (2020), Adult Trainee (2021), Twinkling Watermelon (2023), and Weak Hero Class 2 (2025). In 2023, he had his first and second television lead roles in The Secret Romantic Guesthouse and Twinkling Watermelon.

Key Information

Filmography

[edit]

Television series

[edit]
Year Title Role Ref.
2017 You Are Too Much Lee Kyung-soo [2]
Temperature of Love Youngest Cook
2019 Doctor Prisoner Han Bit [3]
2020 365: Repeat the Year Nam Sun-woo [4]
18 Again Hong Shi-woo [5]
2020–2021 Homemade Love Story Lee Ra-hoon
2022 Through the Darkness Jung Woo-ju [6]
2023 The Secret Romantic Guesthouse Kang San [7]
Twinkling Watermelon Ha Eun-gyeol [8]
2024–2025 Namib Yoon Jin-woo [9]
2025 History of Scruffiness Noh Jun-seok [10]

Web series

[edit]
Year Title Role Ref.
2018 Doo–teob's Pretty Easy School Life Kim Hak-jun [3]
Instant Romance Jang Su-ho [11]
2019 In-Seoul Yoon Seong-hyun [12]
2020 The World of My 17 Yoo Jin-hyuk [13]
In-Seoul 2 Yoon Seong-hyun [14]
2021 Adult Trainee Kim Nam-ho [15]
2023 Borrowed Body Yoon Ho-young [16]
2023–2024 Death's Game youngest PD (Cameo) [17]
2025 Weak Hero 2 Park Hu-min [18]

Television shows

[edit]
Year Title Role Ref.
2019 Creator Campus Himself [citation needed]

Music videos appearances

[edit]
Year Song Title Artist Ref.
2018 "But I Must" (헤어질 수 밖에) Kim Na-young [19]
2021 "In Dreams" (너의 흔적) M.C the Max [20]

Awards and nominations

[edit]
Name of the award ceremony, year presented, category, nominee of the award, and the result of the nomination
Award ceremony Year Category Nominee / Work Result Ref.
KBS Drama Awards 2020 Best New Actor Homemade Love Story Nominated [21]
SBS Drama Awards 2022 Through the Darkness Won [22]
Best Supporting Team Nominated [23]
2023 Excellence Award, Actor in a Miniseries Romance/Comedy Drama The Secret Romantic Guesthouse Won [24]
Best Couple Award Ryeoun (with Shin Ye-eun)
The Secret Romantic Guesthouse
Nominated [25]
Korea Drama Awards 2025 Best New Actor Namib / History of Scruffiness / Weak Hero Class 2 Nominated [26]

References

[edit]
[edit]
Revisions and contributorsEdit on WikipediaRead on Wikipedia
from Grokipedia
Ryeoun (born Go Yoon-hwan on August 26, 1998) is a South Korean actor recognized for his versatile performances in television dramas, including leading roles in Weak Hero Class 1 (2022) as Yeon Si-eun and (2023) as Kang San. Born in , Jeollabuk-do, , Ryeoun stands at 181 cm tall and graduated from the Department of Performing Arts at Seokyeong University after attending Jeonju Yongheung Elementary School and Jeonju Haesung Middle School. He began his acting career in 2017 with a minor role in the SBS drama , marking his debut under the stage name Ryeoun, and is currently represented by Lucky Company. Ryeoun gained prominence with supporting roles in series like (2020) as Hong Si U and (2021) as Kim Nam Ho, before achieving breakout success as the intelligent and resilient high school student Yeon Si-eun in the action web series Weak Hero Class 1, which highlighted his ability to portray complex, introspective characters. His performance in , a historical , earned him the Excellence Award for Actor in a Miniseries Romance/Comedy Drama at the , solidifying his status as a rising star in the industry. In 2023, he further showcased his range in the time-travel family drama as Ha Eun-gyeol, a role that blended humor, , and musical elements, contributing to the series' popularity among younger audiences. In 2025, Ryeoun continued his ascent with lead roles in Weak Hero Class 2 as Park Hu-min (also known as Ben Park), where he gained 10 kg to authentically depict a high school bully character opposite his real-life gentle personality, the romantic comedy Cringy Romance as No Jun-seok, and History of Scruffiness (also known as A History of Losers). He also joined the cast of the crime thriller drama The Flower of Death alongside Geum Sae-rok, expanding into more intense genres. Additionally, Ryeoun received a Best New Actor nomination at the 2025 for his work in Namib, History of Scruffiness, and Weak Hero Class 2. In October 2025, he was cast in the action film Ok! Madam 2.

Early life

Childhood and family

Go Yoon-hwan, professionally known by the stage name Ryeoun (려운), was born on August 26, 1998, in Wansan District, , Jeollabuk-do, . He stands at a height of 181 cm. Ryeoun spent his childhood in , a city rich in traditional Korean culture, where he attended local schools including Jeonju Yongheung Elementary School. He grew up in a environment that he has chosen to keep private, with no public details disclosed about his parents or any siblings. His early years in laid the foundation for his personal development, fostering a connection to the region's heritage before his interests shifted toward during high school.

Education

Ryeoun attended Jeonju Haesung Middle School during his early adolescence in , where he completed his middle school education. In high school, Ryeoun enrolled at , an institution renowned for its arts-focused curriculum. After developing his interest in , Ryeoun moved from to alone to attend an acting academy and prepare for university entrance. During his first year, around 2013–2014, he developed a keen interest in after his aunt introduced him to the musical Cats, which served as a pivotal moment sparking his passion for performance. This newfound enthusiasm led him to join extracurricular activities related to and devote significant time to preparing for college entrance exams targeted at acting programs, including rigorous training in dramatic arts and audition techniques. Following high school, Ryeoun enrolled in the Department of Performing Arts at Seokyeong University, majoring in acting, where he honed his skills through formal coursework and practical training. He graduated from the program around 2020–2021, having balanced his studies with early professional pursuits. During his university years, he gained initial audition experiences, facing competitive environments with peers and building resilience in the pursuit of acting opportunities.

Career

Debut and early roles (2017–2019)

Ryeoun made his acting debut in 2017 with supporting roles in two South Korean television dramas. He portrayed Lee Kyung-soo in the MBC series You're Too Much and the youngest chef at the fictional restaurant in the SBS series . These early appearances marked his entry into the industry as a newcomer, with limited screen time that focused on ensemble casts rather than central narratives. That same year, Ryeoun signed with the talent agency Lucky Company after agency representatives discovered him through his active presence, which helped secure his initial opportunities. He continued building his resume with minor roles in 2018, including such as Doo Teob's Pretty Easy School Life, where he played Kim Hak-jun, and Instant Romance as Jang Su-ho. Additionally, he appeared in the music video for Kim Na-young's song "But I Must" (헤어질 수 밖에), further diversifying his early portfolio in short-form content. In 2019, he took on another supporting role as Han Bit, the brother of lead character So Geum, in the KBS2 medical thriller . As a young entering a competitive field, Ryeoun encountered significant challenges, including nervousness on set and personal hardships such as financial difficulties and his father's illness, which made early shoots particularly daunting. These experiences, combined with his minor roles offering sparse screen presence, emphasized the need to steadily develop his craft. Concurrently, he pursued formal training in at Seokyeong University's Department of , where he focused on foundational skills to support his burgeoning career. This period laid the groundwork for his professional growth, prioritizing practical experience over prominent exposure.

Breakthrough and supporting roles (2020–2022)

In 2020, Ryeoun gained significant exposure through his supporting role as Hong Si-woo, the introverted and emotionally conflicted son in the family drama 18 Again, where he portrayed a high school student navigating family tensions and personal growth alongside a time-regressed . His performance was praised for capturing the character's quiet vulnerability and emotional depth, marking a turning point in his career from minor parts to more nuanced youth roles. That same year, Ryeoun appeared as Yoo Jin-hyuk, a classmate in the ensemble cast of the coming-of-age web drama The World of My 17, contributing to the story's exploration of high school friendships, romance, and self-discovery among a group of teenagers. His role added to the dynamic group interactions, highlighting his ability to blend into youthful ensemble narratives focused on everyday adolescent challenges. In 2022, he also portrayed profiler trainee Jung U-ju in the SBS crime thriller Through the Darkness. To expand his public image beyond scripted roles, Ryeoun participated in the 2021 web series , playing Kim Nam-ho, a hormonal high schooler dealing with and relationships in a mockumentary-style format that mixed comedy and realism. This project broadened his appeal by revealing a more relatable, lighthearted side through improvised teen scenarios.

Lead roles and rising prominence (2023–present)

In 2023, Ryeoun secured his first lead role as Kang San, a Joseon-era preparing for the royal military exam, in the tvN series . The series, which blended historical elements with lighthearted romance and mystery, showcased Ryeoun's comedic timing and charm, earning praise for his ability to portray a fish-out-of-water character navigating unfamiliar dynamics with humor and sincerity. Critics and viewers highlighted his natural delivery in romantic scenes and ensemble interactions, marking a significant step up from his prior supporting roles and solidifying his appeal in genre-blending narratives. Later that year, Ryeoun starred as the protagonist Ha Eun-gyeol in the tvN fantasy drama , where he portrayed a high school from a deaf family who time-travels to the to uncover his parents' past, incorporating musical performances and as key elements. The role demanded versatility in emotional depth, blending youthful energy with poignant family revelations and romance, and received acclaim for Ryeoun's nuanced performance that captured the character's growth amid themes of identity and heritage. Reviews noted the series' heartfelt execution of its time-slip premise, with Ryeoun's lead anchoring the ensemble's chemistry and elevating the show's exploration of generational bonds. Building on these successes, Ryeoun starred as Park Hu-min in the 2025 Netflix action series Weak Hero Class 2, expanding the character's arc with intensified physicality and leadership in high-stakes school confrontations. To embody the tough, righteous "" persona—contrasting his own mild-mannered personality—Ryeoun gained 10 kilograms and focused on action choreography, delving deeper into themes of and resilience that added layers to the webtoon adaptation's intense narrative. This continuation highlighted his adaptability in high-octane genres, further demonstrating growth beyond earlier supporting parts. Ryeoun's momentum continued with lead roles in Namib (2024–2025), where he played the determined trainee Yoo Jin-woo opposite a veteran producer in an industry drama about ambition and reinvention, and History of Scruffiness (2025) as Noh Jun-seok in a story exploring personal evolution. These projects, spanning corporate intrigue and introspective , reflect Ryeoun's deliberate shift toward diverse genres to avoid , as discussed in interviews where he emphasized embracing varied challenges to broaden his range. Additionally, in 2026, he will lead the crime thriller The Flower of Death as Lee Yeong-hwan, a complex character in a story of morality and murder. By 2025, these starring opportunities have positioned him as a rising talent capable of carrying projects across romantic, fantastical, and dramatic landscapes.

Filmography

Television series

Ryeoun made his acting debut in broadcast television with a minor supporting role in the MBC family drama You're Too Much, which aired from March 4 to August 27, 2017, over 50 episodes, taking on a small supporting part as Lee Kyung-soo that contributed to the ensemble story of intertwined lives and personal redemption. Later that year, he appeared in the SBS romantic comedy Temperature of Love, broadcast from September 18 to November 21, 2017, across 40 episodes, where he portrayed the youngest cook in a family-run restaurant setting. In 2019, Ryeoun gained early recognition in the KBS2 medical thriller , which ran from March 20 to May 15, 2019, for 32 episodes; he played Han Bit, the protective younger brother of a key character, adding emotional depth to the revenge plot amid intrigue. His role in the KBS2 (September 19, 2020–March 7, 2021, 100 episodes) as Lee Ra-hoon, the devoted brother of protagonist Chae Un, highlighted themes of familial bonds and resilience in a community, helping the series achieve strong viewership ratings averaging over 20%. That same year, in JTBC's body-swap comedy (September 21–November 17, 2020, 16 episodes), Ryeoun portrayed Hong Si-woo, the rebellious teenage son navigating family dynamics after his father swaps bodies with him, a role that showcased his ability to blend humor and heartfelt reconciliation, contributing to the drama's popularity with a peak rating of 5.5%. Ryeoun continued with supporting parts in MBC's mystery thriller 365: Repeat the Year (March 16–June 21, 2020, 24 episodes), as Nam Soon-woo, integrating into a time-loop investigation of murders that emphasized ensemble teamwork. In 2022, he appeared in SBS's crime procedural Through the Darkness (January 14–March 12, 2022, 12 episodes) as Jung Woo-joo, a young profiler apprentice, supporting the narrative of Korea's early serial killer profiling efforts and earning him a Best New Actor award at the for his nuanced performance. Marking his rise, Ryeoun secured his first lead role in SBS's historical romantic comedy (March 20–May 16, 2023, 18 episodes) as Kang San, a mysterious solving at an inn, blending mystery with lighthearted romance and drawing solid ratings around 3-4% nationwide. His second lead came in tvN's coming-of-age fantasy (September 25–November 14, 2023, 16 episodes), where he starred as Ha Eun-gyeol, a CODA (child of deaf adults) musician who time-travels to 1995, incorporating elements into a story of family healing and self-discovery; the series resonated widely, achieving a peak viewership of 7.7% and praise for its inclusive portrayal of . Ryeoun led the ENA entertainment industry drama Namib (December 23, 2024 – January 28, 2025, 12 episodes) as Yoo Jin-woo, a long-time trainee burdened by personal baggage who teams up with a disgraced for a comeback project, which garnered attention for its themes of redemption and ambition, with episodes averaging 2-3% ratings. Upcoming, Ryeoun is cast in the crime thriller The Flower of Death alongside Geum Sae-rok, with filming completed as of November 2025; air date and network to be announced.
YearTitleRoleNetworkAir DatesEpisodesRole Type
2017You're Too MuchLee Kyung-sooMBCMar 4–Aug 2750Supporting
2017Youngest cookSBSSep 18–Nov 2140Supporting
2019Han BitKBS2Mar 20–May 1532Supporting
2020Lee Ra-hoonKBS2Sep 19, 2020–Mar 7, 2021100Supporting
2020Hong Si-wooSep 21–Nov 1716Supporting
2020365: Repeat the YearNam Soon-wooMBCMar 16–Jun 2124Supporting
2022Through the DarknessJung Woo-jooSBSJan 14–Mar 1212Supporting
2023Kang SanSBSMar 20–May 1618Lead
2023Ha Eun-gyeoltvNSep 25–Nov 1416Lead
2024–2025Yoo Jin-wooENADec 23, 2024 – Jan 28, 202512Lead
2026The Flower of DeathTBDTBDTBDTBDLead

Web series

Ryeoun has appeared in several digital-first since 2020, primarily on South Korean streaming platforms such as Wavve, , and KakaoTV. These projects often feature shorter formats, typically 8-12 installments of 20-40 minutes each, allowing for concise suited to consumption. His roles in these series have showcased his versatility in genres ranging from high school dramas to fantasy mysteries, contributing to his growing visibility in the OTT space. In 2020, Ryeoun starred as Yoon Seong-hyun in the main role of IN-SEOUL Season 2, a 12-episode on that follows young adults navigating and relationships in . His character, a charismatic yet relatable young man, highlighted his comedic timing in everyday scenarios. Later that year, he portrayed Yoo Jin-hyuk in The World of My 17, a 12-episode web drama on (CJ ENM), where he played a supportive high school friend in a story centered on teenage girls' friendships, growth, and insecurities. Ryeoun continued with web series in subsequent years, taking on Kim Nam-ho in episodes 3-5 of the 2021 seven-episode series on Watcha, a coming-of-age exploring teenagers' experiences with , love, and self-discovery; his role as a conflicted adolescent added emotional depth to the anthology-style format. In 2022, he led as Yoon Ho-young in Borrowed Body, a 10-episode fantasy romance mystery on KakaoTV, depicting a body-swap between an outsider and a popular student amid school intrigue and budding romance. Looking ahead, he is set to star as Park Hu-min (also known as Ben Park or ) in Weak Hero Class 2 (2025), an eight-episode original continuing the high school action storyline with a focus on intensified conflicts and alliances, where he gained 10 kg to authentically depict the bully character opposite his real-life gentle personality. In 2025, Ryeoun starred as No Jun-seok in the History of Scruffiness (also known as Cringy Romance), an eight-episode on Wavve that follows university friends navigating love and personal growth, blending humor and emotion. These , particularly Weak Hero Class 2 on global platforms like and Wavve, have significantly boosted Ryeoun's international fanbase by exposing his performances to audiences beyond traditional Korean broadcasts, fostering discussions on social media and streaming metrics that highlight his rising appeal in youth-oriented genres.

Variety shows

Ryeoun began appearing on variety programs early in his career, providing glimpses into his personality beyond scripted roles. In 2018, he participated as a contestant in the MBC audition variety show Casting Call, a program focused on musical theater auditions, where he advanced to the second round before elimination, showcasing his determination and stage presence during vocal and performance challenges. In 2019, Ryeoun served as a regular member on Creator Campus, a 12-episode YouTube-based variety series that followed web drama actors attempting to create content and adapt to a mock , allowing him to demonstrate his creative side through collaborative skits and vlogs that highlighted his humorous and approachable demeanor. His guest appearance on Self-on Kode in 2022 (episode 56) featured him engaging in lighthearted games and conversations, revealing his witty banter and relatability in a format pairing celebrities for interactive segments. This was followed by a role as a special panelist on EXchange Season 3 in 2023 (episodes 1-2), a TVING dating reality show, where he offered commentary on participants' relationships, adding charm through his observant and empathetic insights. In 2023, Ryeoun guested on I Live Alone (episode 427), sharing aspects of his daily routine and personal habits in the MBC lifestyle variety program, which emphasized his down-to-earth lifestyle. He returned to the show in 2025 (episode 596), joining ' Lee Know for a segment involving cooking with host , where he participated in butchering and meal preparation activities, further endearing himself to audiences with his easygoing friendship dynamics and culinary enthusiasm. Ryeoun revisited Self-on Kode in May 2025, pairing with Girls' Generation's Sooyoung for challenges and discussions that played on age gaps and celebrity experiences, such as debating nicknames and sharing travel anecdotes, which amplified his playful and self-deprecating humor. These outings, spanning auditions, reality commentary, and segments, helped cultivate Ryeoun's image as an affable and versatile entertainer, bridging his dramatic work with more casual, interactive formats that resonated with fans seeking his off-screen authenticity.

Music video appearances

Ryeoun's music video appearances are limited to two roles, both serving as concise cameos that supplemented his early television work and helped establish his on-screen presence in narrative-driven visuals. In 2017, shortly after his acting debut, Ryeoun appeared in Kim Na-young's "But I Must" (헤어질 수 밖에), where he portrayed a heartbroken young man entangled in a melancholic breakup story, sharing intimate scenes with actress to evoke themes of inevitable separation and lingering emotions. The video's autumnal aesthetic and piano-driven melody complemented his subtle, expressive performance, marking one of his initial forays into music-driven storytelling. In 2021, Ryeoun featured in M.C the Max's "In Dreams" (너의 흔적) from their 20th anniversary album CEREMONIA, depicting a character haunted by memories and unresolved in a dreamlike sequence that intertwined with the song's rock style. His cameo emphasized emotional introspection, aligning with the track's exploration of fleeting traces of lost love. These brief roles, occurring amid his rising drama career, highlight the rarity of Ryeoun's music video work as targeted portfolio builders rather than primary focuses.

Awards and nominations

YearAwardCategoryWorkResultRef.
2020KBS Drama AwardsBest New ActorHomemade Love StoryNominated
2022SBS Drama AwardsBest New ActorThrough the DarknessWon
2022SBS Drama AwardsBest Supporting TeamThrough the DarknessNominated
2023SBS Drama AwardsExcellence Award for Actor in a Miniseries Romance/Comedy DramaThe Secret Romantic GuesthouseWon
2023SBS Drama AwardsBest Couple (with Shin Ye-eun)The Secret Romantic GuesthouseNominated
202516th Korea Drama AwardsBest New ActorNamib, History of Scruffiness, and Weak Hero Class 2Nominated

References

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