KBS2's 'Twelve' Premieres at 8.1%: What Ma Dong-seok's Zodiac Angel Drama Tells Us About Korea's Supernatural Action Ambitions

KBS2's Twelve premiered on August 23, 2025 with a nationwide average rating of 8.1%. The opening episode topped its Saturday timeslot, outperforming rival dramas and signaling that the combination of Ma Dong-seok's star power, a supernatural zodiac mythology, and an ambitious action-drama format could command immediate audience attention. Disney+ simulcast the series internationally, extending its reach beyond the domestic audience that drove the premiere's commercial success.

The drama stars Ma Dong-seok as Tae-san, the tiger-embodying leader of twelve zodiac angels who protect Korea from evil spirits. Park Hyung-sik plays O-gwi, the villainous force threatening to break the seal on dormant evil. Seo In-guk rounds out the central conflict as Won-seung, a monkey-symbolizing angel who challenges Tae-san's leadership. The 8.1% premiere placed Twelve ahead of competing dramas in the same timeslot, including those headlined by Yoon Kye-sang and Lee Jin-wook, confirming the draw of its ensemble and concept.

The Concept: Zodiac Angels, Returning Evil, and K-drama's Expanding Ambition

Twelve's premise draws from Korea's zodiac animal mythology while grafting contemporary action-drama structure onto a supernatural foundation. The twelve zodiac angels fought evil forces in antiquity, sealed them in the gate of hell, and now live as humans — until the sealed darkness awakens again. Ma Dong-seok plays Tae-san, the tiger-embodying leader whose physical presence and industry reputation for action-intensity made him obvious casting for the role.

Park Hyung-sik's villain role required the actor known primarily for romantic and lighter dramatic roles to occupy the position of central antagonist against Ma Dong-seok's established action-star persona. The contrast is structurally significant: Twelve positions Park Hyung-sik's evolving dramatic range as the narrative engine against which Ma Dong-seok's more familiar screen identity operates. Seo In-guk adds an internal conflict layer — a guardian who eyes the leadership position held by Tae-san, creating tension within the angel ensemble that parallels the external supernatural threat.

The writing credit for Twelve is shared between screenwriter Kim Bong-han and Ma Dong-seok himself — an unusual arrangement that placed the lead actor in a co-authorial position, reflecting the project's origins as a vehicle shaped by his own production instincts and his credibility as a producer-level collaborator on Korean action content.

Deep Analysis: What Twelve's Premiere Tells Us About KBS2 Strategy and the Supernatural Action Genre

The 8.1% premiere rating positions Twelve within a specific tradition of high-concept KBS2 action-fantasy dramas that have periodically tested how far domestic television audiences will follow genre ambition. Korean terrestrial television has generally favored melodrama and romantic comedy formats for primetime success — genres with proven audience retention mechanisms. The action-supernatural hybrid occupies more uncertain territory.

Ma Dong-seok's star power is the primary risk-mitigating factor in Twelve's approach. His domestic recognition from the Roundup franchise and international profile from the MCU film Eternals (2021) provides audience reassurance that the action content will meet expectation. KBS2's willingness to co-produce with Disney+ simultaneously reflects the network's understanding that the global appetite for Korean supernatural action content — demonstrated by the international success of Hellbound and Sweet Home on Netflix — creates a sustainable market for this genre beyond domestic ratings alone.

The 8.1% premiere outperformed all competing dramas in the Saturday-Sunday primetime slot, confirming that the cast investment translated into immediate viewer prioritization. Korean drama audiences making weekend timeslot choices between comparable premium offerings chose Twelve first — precisely the signal KBS2 needed to validate the production's considerable budget commitment. The simultaneous Disney+ release added an international revenue and visibility dimension that pure domestic ratings metrics do not capture.

The post-premiere performance trajectory for Twelve was complicated by early viewer response. The premiere's momentum did not fully sustain through the series' second and third episodes, and audience opinion on the drama's execution of its ambitious concept became divided. This pattern — strong premiere, contested follow-through — reflects a recurring challenge in high-concept Korean dramas where the premise generates stronger initial audience pull than the weekly execution can consistently maintain. It is a structural tension built into the genre: the more ambitious the mythology, the higher the execution standard viewers apply to each subsequent episode.

Cast Response and Viewer Reactions

The premiere drew social media attention for Ma Dong-seok's physicality in the action sequences, which maintained the caliber audiences expected from his Roundup franchise work. Park Hyung-sik's villain portrayal received significant discussion, with viewers split between appreciation for his departure from typical character types and reservations about whether the performance fully anchored the series' supernatural menace. The ensemble — featuring Sung Dong-il, Lee Joo-bin, Ko Kyu-pil, and Kang Mi-na — provided supporting layers that reviewers noted as enriching the world-building even when central narrative threads were under scrutiny.

The Disney+ simultaneous release generated international audience response from K-drama viewers who had followed Ma Dong-seok's career across his action-film work. The supernatural Korean zodiac mythology was noted by international reviewers as a culturally specific narrative framework that distinguished Twelve from both Western supernatural action content and the more globally familiar K-drama romance genre.

Future Outlook

Twelve's 8.1% premiere established that large-scale supernatural action drama can command immediate audience attention on Korean terrestrial television when anchored by the right star power. The series ran through September 14, 2025, giving it four weekends to either build on its opening or manage the gap between concept ambition and execution reality. Whatever the final verdict on Twelve as a completed series, its opening weekend demonstrated that KBS2's experiment in the action-supernatural genre had genuine audience relevance — and that Ma Dong-seok's expanded role as writer-actor-producer represents a creative model worth watching as K-drama storytelling continues to test genre boundaries.