Oska is a flashy, fading pop star and Kim Joo-won's older cousin, introduced as a vain celebrity coasting on past fame and trading barbs with his sharp-tongued relative. His comic vanity and rivalry with Joo-won provide much of the series' lighter energy in its early episodes.
Beneath the showman's swagger, Oska carries the regret of a lost love, and the second romance of the series traces his halting attempts to win back the woman he once let slip away. This thread gives the otherwise comedic character a vein of real melancholy and longing.
Over the course of the show Oska matures from a self-absorbed star into a man capable of sincerity and sacrifice, his redemption running as a tender counterpoint to the central couple's fairy-tale romance.
Oska is one of the central figures in Secret Garden, a romance/fantasy/comedy/drama series that aired on SBS from 2010-2011. Within the narrative of Secret Garden, Oska serves as a pivotal character whose decisions and relationships drive key story arcs throughout 2010-2011. The character's journey has been central to many of the show's most memorable and discussed moments.
Portrayed by Yoon Sang-hyun, Oska has become one of the most recognizable characters in modern television. Yoon Sang-hyun's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. Yoon Sang-hyun's work has been recognized with 1 major award, reflecting the critical acclaim their portrayal has received.
Explore More on TVCeleb
TVCeleb.com is the internet's most comprehensive resource for television character fandom, covering 1430 acclaimed TV series with 4367 detailed character profiles and 3475 actor biographies. Our coverage spans 420 genres across 389 networks and streaming platforms, with content organized to help fans discover, explore, and engage with television from every angle.
Browse our collection by genre to find shows in your preferred category, by network to see what's available on your streaming platform, by decade to explore different eras of television history, or by curated lists that group characters by archetype and achievement. Each show page features expanded synopses, production details, and video content, while character pages include detailed arc analysis, key episodes, quotes, trivia, and fan ecosystem mapping.
Every character on TVCeleb is scored using our proprietary Fan Heat Index, which measures engagement, social activity, meme velocity, fan art density, and fandom longevity on a scale of 0 to 100. This data-driven approach provides objective insight into which characters have inspired the most passionate and active fan communities. Use the search page to find any character, show, or actor instantly, or start browsing from our homepage to discover what's trending in television fandom today.
? Frequently Asked Questions
Oska is played by South Korean actor and singer Yoon Sang-hyun, whose performance became a fan favorite.
Oska is a flamboyant pop star and the older cousin of lead character Kim Joo-won, central to the drama's secondary romance.
