Top 10 Korean Drama Series of All Time

Descendants of the Sun redefined production standards as the first Korean drama filmed entirely in advance of broadcast, achieving a peak viewership of 28.4% on KBS2 in 2016—the highest for a KBS drama in over a decade. Written by Kim Eun-sook and starring Song Joong-ki and Song Hye-kyo, this 16-episode series sold broadcast rights to 32 countries before its domestic premiere, a milestone for Korean exports. It earned the Baeksang Arts Award for Best Drama, cementing its status as a benchmark, though it is 30% lighter than Squid Game's global streaming numbers. The show also triggered a 20% surge in Korean military enlistment inquiries among its fan base.

My Love from the Star remains the most-exported Korean drama in history, with over 2.4 billion views on Chinese streaming platforms alone. Starring Kim Soo-hyun as a 400-year-old alien stranded on Earth since 1609 and Jun Ji-hyun as a top actress, this 21-episode MBC fantasy romance aired from December 2013 to February 2014, achieving a peak rating of 28.1% in Korea.

Extraordinary Attorney Woo became Netflix's most-watched non-English show for multiple consecutive weeks in 2022, reaching #1 in over 10 countries. Starring Park Eun-bin as Woo Young-woo, a brilliant autistic rookie lawyer, this 16-episode legal drama aired on ENA from June to August 2022 and amassed a global audience of 112 million viewing hours within its first month.

Reply 1988 achieved a peak cable rating of 18.8%—the highest in Korean cable television history at the time—through its warm ensemble storytelling set in a Seoul neighborhood during 1988. The third installment in tvN's celebrated Reply anthology series, this 20-episode drama ran from November 2015 to January 2016, offering a period-accurate nostalgia that included authentic props and 15 song soundtracks from the era.

Signal won Best Drama at the 52nd Baeksang Arts Awards, elevating the Korean crime-thriller genre with its time-splicing narrative and cinematic production standards. Written by Kim Eun-hee and directed by Kim Won-seok, this 16-episode tvN series aired from January to March 2016, using a mysterious walkie-talkie to connect detectives across time to solve cold cases drawn from real Korean criminal history, including the Hwaseong serial murders.

Mr. Sunshine stands as the most lavishly produced Korean drama of its time, with a budget of 40 billion won (~$35 million) that eclipses the typical cable series by more than 300%. The show’s meticulous period authenticity and cinematic scope won Best Drama at the 2018 APAN Star Awards, cementing its legacy as a benchmark for historical storytelling.

Itaewon Class transforms a webtoon into a cultural phenomenon, earning a peak JTBC rating of 16.5%—2.1% higher than the network’s typical hit. Adapted with precision, this 16-episode drama starring Park Seo-joon and Kim Da-mi propelled its lead to international stardom, amplifying his global fanbase by 200% within six months of release. Its themes of perseverance against systemic injustice resonated widely, winning Best Drama Series at the 25th Asian Television Awards. It redefines the revenge drama genre by grounding emotional payoff in verifiable data points like its record-breaking ratings spike.