Cover Some of the most memorable K-drama pairings worked because they were rooted in real-life friendships. In photo are Kim Seon-ho as Joo Ho-jin, Lee E-dam as Shin Ji-sun in ‘Can This Love Be Translated?’(Photo: No Ju-han/Netflix © 2026)
Some of the most memorable K-drama pairings worked because they were rooted in real-life friendships. In photo are Kim Seon-ho as Joo Ho-jin, Lee E-dam as Shin Ji-sun in ‘Can This Love Be Translated?’(Photo: No Ju-han/Netflix © 2026)
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From long-time friends to trusted co-stars, these K-drama pairings brought real rapport to the screen
Television chemistry is often discussed as something elusive or manufactured, but in Korean drama it is frequently rooted in long-standing rapport and professional trust. Many of the most convincing romantic arcs come from actors who were already comfortable with one another before cameras rolled or who developed an easy working rhythm during production. This is not about marketing narratives or post-show mythology. It is about visible familiarity, shared shorthand and a lack of self-consciousness that shows up in rehearsals, interviews and behind-the-scenes footage. These K-drama pairings stand out because their off-screen friendships were well documented at the time of filming and clearly informed the tone of their performances, whether playful, restrained or quietly supportive. In an industry built on tight schedules and repeated collaborations, these relationships often matter as much as casting choices.
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1. Kim Seon-ho & Go Youn-jung, ‘Can This Love Be Translated?’
Kim Seon-ho and Go Youn-jung lead the romantic comedy Can This Love Be Translated?, written by the Hong Sisters and released on Netflix. The series centres on Joo Ho-jin, played by Kim Seon-ho, a skilled multilingual interpreter who becomes closely involved with Cha Mu-hee, a globally recognised actress portrayed by Go Youn-jung. Their characters navigate professional boundaries and personal misunderstandings while working together across language barriers. As one of the newer K-drama pairings to attract attention, the collaboration brings together two actors whose recent projects have expanded their international visibility, placing them at the centre of a production designed for a global streaming audience.
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2. Lee Sung-kyung & Nam Joo-hyuk, ‘Weightlifting Fairy Kim Bok-joo’
Lee Sung-kyung and Nam Joo-hyuk were friends and label mates under YG Entertainment before being cast together. During promotion, they were often referred to as the “SWAG” couple, a nickname commonly used in Korean pop culture to suggest confidence, ease and a fashion-forward attitude, reflecting their shared modelling background and relaxed dynamic. Their familiarity allowed the drama’s best-friends-to-lovers structure to unfold naturally, particularly in early episodes where casual physicality and teasing drive the story. Among K-drama pairings built on prior connections, this is one of the clearest examples of pre-existing rapport shaping performance.
3. Hyun Bin & Son Ye-jin, ‘Crash Landing on You’
By the time filming began, Hyun Bin and Son Ye-jin already shared a close working relationship from earlier projects and public appearances. During production, their ease with one another was visible in interviews and behind-the-scenes clips, where conversation flowed easily and physical proximity appeared unforced. Although they married after the drama concluded, their on-set friendship was already well established during filming, contributing to one of the most closely watched K-drama pairings of the past decade.
4. Park Seo-joon & Kim Ji-won, ‘Fight for My Way’
Park Seo-joon and Kim Ji-won developed a relaxed, sibling-like dynamic during filming, something the director openly commented on in press interviews. Their comfort level made it easier to shift between comedy and emotional confrontation without overplaying either register. The drama relies heavily on conversational rhythm and shared history between its leads, and their off-screen friendship helped sustain that balance across the series.
5. Choi Woo-shik & Kim Da-mi, ‘Our Beloved Summer’
After starring together in the film The Witch: Part 1. The Subversion, Choi Woo-shik and Kim Da-mi entered Our Beloved Summer with an established working relationship. Behind-the-scenes material shows a playful, unguarded dynamic that carried into the drama’s bickering-heavy early episodes. Their familiarity allowed scenes to linger in silence or irritation without feeling performative, a quality that set this entry apart from more conventional K-drama pairings.
6. Kim Soo-hyun & Seo Ye-ji, ‘It’s Okay to Not Be Okay’
Throughout production, behind-the-scenes footage consistently showed Kim Soo-hyun and Seo Ye-ji joking between takes and offering support during emotionally demanding scenes. This rapport helped anchor a series that required rapid tonal shifts and sustained intensity. Their off-screen ease provided contrast to the heightened material, making the central relationship feel grounded rather than stylised.
7. Park Bo-young & Park Hyung-sik, ‘Strong Woman Do Bong-soon’
Park Bo-young and Park Hyung-sik maintained a close friendship during and after filming, often referencing their characters’ nicknames in interviews. Their relaxed interaction extended beyond promotional obligations, contributing to a sense of continuity between on-screen and off-screen dynamics. Among lighter K-drama pairings, their comfort level remains frequently cited by fans and press alike.
8. Song Joong-ki & Jeon Yeo-bin, ‘Vincenzo’
Song Joong-ki and Jeon Yeo-bin worked together with clear mutual respect and open communication on set. Behind-the-scenes footage shows them discussing scenes and tone in detail, alongside moments of relaxed humour. Their relationship remained professional throughout filming, which suited a drama that moved between heightened action and carefully measured emotional scenes.
9. Park Eun-bin & Rowoon, ‘The King’s Affection’
During filming, Park Eun-bin and Rowoon were open about their supportive noona-dongsaeng relationship. They exchanged coffee trucks, spoke publicly about learning from one another and shared advice on managing demanding schedules. This support system helped sustain a production that required extended periods of physical and emotional intensity.
10. Lee Dong-wook & Yoo In-na, ‘Goblin’ and ‘Touch Your Heart’
After working together on Goblin, Lee Dong-wook and Yoo In-na reunited for Touch Your Heart with an already established rapport. Their familiarity allowed romantic scenes to unfold with minimal exposition, relying instead on timing and restraint. Few K-drama pairings benefit as clearly from repeated collaboration, and their friendship remains one of the industry’s most recognisable.
11. Song Kang & Han So-hee, ‘Nevertheless’
Song Kang and Han So-hee displayed a notably relaxed dynamic during promotion and filming, often joking in interviews and behind-the-scenes content. Their ease with physical proximity and casual conversation was widely discussed at the time, with audience attention focused on how natural their interactions appeared. Within contemporary K-drama pairings, their off-screen friendship closely mirrored the tone of the drama itself.
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Chonx Tibajia is a senior editor at Tatler Asia’s T-Labs team, where she writes widely on lifestyle subjects including beauty, style, entertainment and travel. She has a long career in journalism, including roles as a columnist at The Philippine Star, and is the founder of the creative platform Pineappleversed. Beyond Tatler, her bylines appear in regional lifestyle and business publications, showcasing a broad portfolio that spans beauty trends, travel guides and culture pieces.
