Abyss
Cover Did these cameos from Kim Moo-young and Yoo Jin-kang give you closure? (Screenshot: YouTube / Netflix K-Content)
Abyss

It’s a small K-drama world, after all. These legendary cameos prove that the K-drama universe is more connected than fans ever imagined

K-dramas are known for their slice-of-life plots that typically conclude after a single season. However, the idea of a K-drama multiverse is an exciting one. Every so often, a beloved character from one series makes a surprise appearance in another, sending fans into a frenzy. Whether it’s a mafia consigliere making a chaebol power move or a star-crossed couple defying timelines, these cameos aren’t just fun Easter eggs—they’re proof that K-drama creators know exactly what fans love and enjoy keeping them on their toes.

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From iconic detectives and supernatural beings to former idols and forgotten ghosts, here are the best K-drama crossovers that had us screaming, “Wait, did that just happen? But what does this mean?”

1. Vicenzo from ‘Vincenzo’ (2021) in ‘Queen of Tears’ (2024)

t was the crossover no one saw coming. Just as tensions in Queen of Tears were rising, in walked Vincenzo Cassano (Song Joong-ki), still exuding mafia-level charisma. The brief but electrifying cameo had fans speculating whether the ruthless consigliere was expanding his empire into chaebol territory. The answer? Yes. He appears as Hong Hae-in’s (Kim Ji-won) divorce lawyer.

Beyond Song Joong-ki’s dramatic elevator entrance, complete with a gust of wind, the dialogue cemented the impact of the cameo. When lawyer Kim Yang-ki (Moon Tae-yu) introduces Vincenzo to Baek Hyun-woo (Kim Soo-hyun), he remarks, “There are many rumours about who he is... the youngest heir of a conglomerate family, a former soldier stationed abroad, someone who came here on a spaceship. Others say he’s a werewolf.” These references cleverly nod to Song’s previous roles in Reborn Rich, Descendants of the Sun, Space Sweepers, and A Werewolf Boy.

Adding to the excitement, Kim Ji-won and Song previously co-starred in Descendants of the Sun and Arthdal Chronicles, while Queen of Tears and Vincenzo share the same director.

See more: Vincenzo: 5 things you may have missed—easter eggs and design details

2. Do Bong-soon and Ahn Min-hyuk from ‘Strong Girl Bong-soon’ (2017) in ‘Strong Girl Nam-soon’ (2023)

In Strong Girl Bong-soon, Do Bong-soon (Park Bo-young) is a petite yet powerful woman born with superhuman strength. She finds love with gaming CEO Ahn Min-hyuk (Park Hyung-sik), who admires her abilities. Given that Strong Girl Nam-soon follows her long-lost cousin, Kang Nam-soon (Lee Yoo-mi), who shares the same extraordinary trait, a cameo was inevitable.

Fans were thrilled to see Bong-soon and Min-hyuk again, now happily married with a family. Min-hyuk remained as smitten as ever, making their reappearance feel like a reunion with an old favourite.

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3. Cha Soo-hyun from ‘Signal’ (2016) in ‘Move to Heaven’ (2021)

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Signal
Above “Signal” (Photo: IMDB)
Signal

Signal is a gripping crime drama in which a profiler (Lee Je-hoon) communicates with a detective from the past (Cho Jin-woong) through a mysterious radio. Cha Soo-hyun (Kim Hye-soo), a determined officer entangled in a decades-old cold case, plays a pivotal role.

Her brief but significant cameo in Move to Heaven (2021)—which follows Geu-ru (Tang Jun-sang), a young man with Asperger’s syndrome running a trauma cleaning business—sparked theories among fans. Did she cross paths with Geu-ru on an unsolved case? Are both dramas part of a larger mystery-filled universe?

See more: 12 intense K-drama thrillers that will keep you on the edge of your seat

4. Shin Soon-ae from ‘Oh My Ghost’ (2015) in ‘Hi, Bye Mama’ (2020)

In Oh My Ghost, timid assistant chef Na Bong-sun (Park Bo-young) becomes possessed by Shin Soon-ae (Kim Seul-gi), a mischievous ghost who never experienced love. Meanwhile, Hi, Bye Mama (2020) follows Cha Yu-ri (Kim Tae-hee), a mother who gets a second chance at life after dying in an accident.

Shin Soon-ae’s unexpected appearance in Hi, Bye Mama was a heart-wrenching crossover, seamlessly connecting two dramas that explore the lingering presence of spirits.

5. Go Hye-mi from ‘Dream High’ (2011) in ‘My Love From The Star’ (2013)

Dream High follows Go Hye-mi (Bae Suzy), an aspiring singer at an elite performing arts school. My Love From The Star (2013) tells the story of an alien (Kim Soo-hyun) who has lived on Earth for 400 years and falls for a top actress (Jun Ji-hyun).

Bae Suzy’s cameo as Hye-mi in My Love From The Star was a delightful nod to her past role and a playful reference to her history with Kim Soo-hyun, who played her love interest in Dream High.

 

6. Kim Moo-young and Yoo Jin-kang from ‘The Smile Has Left Your Eyes’ (2018) in ‘Abyss’ (2019)

The Smile Has Left Your Eyes is a tragic romance between Kim Moo-young (Seo In-guk), a mysterious man with a hidden past, and Yoo Jin-kang (Jung So-min), who is drawn to him despite her instincts.

Their surprise double cameo in Abyss (2019), a fantasy drama about two people resurrected in different bodies, was the ultimate fan service. It evoked memories of their devastating love story, sending fans into an emotional spiral.

7. Go Mi-nyeo from ‘You're Beautiful’ (2009) in ‘My Girlfriend Is A Gumiho’ (2010)

In You’re Beautiful (2009), Go Mi-nyeo (Park Shin-hye) disguises herself as her twin brother to join a popular boy band. A year later, in My Girlfriend Is A Gumiho (2010), a fantasy rom-com about a man (Lee Seung-gi) who falls for a nine-tailed fox spirit, Park made a cameo as Go Mi-nam. Here, she plays a flirtatious bus rider, a playful throwback to her past role. More importantly, her scene helps confirm the romantic feelings of the main couple in My Girlfriend Is A Gumiho.

Also read: 11 of the most popular female K-drama leads to know this 2021

8. The friends from ‘Weightlifting Fairy Kim Bok-joo’ (2016) in ‘The Bride of Habaek’ (2017)

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Weightlifting Fairy
Above It's time to rewatch ‘The Bride of Habaek’ to spot those cameos (Photo: IMDB)
Weightlifting Fairy

Weightlifting Fairy Kim Bok-joo follows weightlifting prodigy Kim Bok-joo (Lee Sung-kyung) as she discovers love and self-acceptance. Meanwhile, The Bride of Habaek is a fantasy romance about a water god (Nam Joo-hyuk) adapting to life in the mortal world.

When Bok-joo’s friends appeared in The Bride of Habaek, it was an inside joke between the two dramas—especially since Nam Joo-hyuk starred in both.

9. Bang Dong-gu from ‘Secretly, Greatly’ (2013) in ‘Crash Landing on You’ (2019)

In Secretly, Greatly (2013), Lieutenant Won Ryu-hwan (Kim Soo-hyun) is a North Korean spy posing as a village idiot named Bang Dong-gu. Six years later, Kim reprised the same ridiculous disguise in Crash Landing on You (2019), another drama set in North Korea.

The comedic cameo reminded fans of Kim’s ability to switch effortlessly between action and deadpan humour, making it one of the most memorable K-drama crossovers.

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