Cao Guang-Yan is introduced as Pu Yi-Yong's sharp-tongued school rival, an analytical and self-assured classmate whose competitive streak keeps the two constantly trading barbs. Where Yi-Yong relies on instinct and his newfound sixth sense, Guang-Yan prefers logic, observation, and reasoning, making him a natural foil within the group.
Drawn reluctantly into Yi-Yong's supernatural cases, Guang-Yan's skepticism and analytical mind prove surprisingly useful, helping the trio piece together the human facts behind each restless spirit's lingering obsession. His rivalry with Yi-Yong gradually softens into a grudging, then genuine, partnership as the stakes of their cases grow more personal.
Across the season, Guang-Yan's arc traces the thaw from antagonistic classmate to trusted friend. His combination of intellect and slowly revealed loyalty rounds out the central trio, giving the show its balance of head, heart, and the supernatural as the three learn to rely on one another.
Cao Guang-Yan is one of the central figures in Oh No! Here Comes Trouble, a mystery/comedy/supernatural/taiwanese/drama series that aired on GTV from 2023. Within the narrative of Oh No! Here Comes Trouble, Cao Guang-Yan serves as a pivotal character whose decisions and relationships drive key story arcs throughout 2023. The character's journey has been central to many of the show's most memorable and discussed moments.
Portrayed by Peng Cian-You, Cao Guang-Yan has become one of the most recognizable characters in modern television. Peng Cian-You's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. The casting of Peng Cian-You has been widely praised by both critics and fans as essential to the character's impact and the show's success.
Explore More on TVCeleb
TVCeleb.com is the internet's most comprehensive resource for television character fandom, covering 1530 acclaimed TV series with 4667 detailed character profiles and 3696 actor biographies. Our coverage spans 445 genres across 402 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
Cao Guang-Yan is Pu Yi-Yong's analytical school rival who is pulled into the trio's supernatural investigations. His logical, skeptical approach contrasts with Yi-Yong's instinct-driven sixth sense, and their rivalry gradually becomes a genuine friendship.
Cao Guang-Yan is played by Taiwanese actor Peng Cian-You.
