Director
Oh Choong-hwan
9 credited titles on WatchWise
Oh Choong-hwan (오충환) is a prominent South Korean television director known for helmning several of South Korea's biggest international romance and fantasy hits. His directorial credits include the Netflix romantic drama "Melo Movie" (2025), as well as critically and commercially acclaimed series such as "Castaway Diva" (2023), "Big Mouth" (2022), "Start-Up" (2020), "Hotel Del Luna" (2019), and "While You Were Sleeping" (2017).
Commercial performance
Not enough verified figures yet — only 0 of 9 catalogued titles have publicly reported budget and worldwide gross. Many films (television, independent and regional cinema) never publish these numbers; where they exist, WatchWise fills them in automatically from TMDB and Wikipedia.
Directed (9)
Titles are ones WatchWise has catalogued so far — not necessarily a complete filmography.