Lee Jung-Jae: His Biography, Relationships, Net Worth

When a South Korean actor becomes a household name in over 190 countries, it’s usually for one role — for Lee Jung-jae, that role was Seong Gi-hun in Squid Game, but his career spans three decades from runways to Hollywood. This fact-checked profile covers who he is, what he’s really worth, and why the most asked questions about him are the ones his private life won’t answer.

Born: 1973, Seoul, South Korea ·
Debut: 1993 (modeling), 1994 (film) ·
Known For: Squid Game (2021) ·
Net Worth (est.): $20 million ·
Relationship: In a relationship (not married)

One dozen datapoints, one pattern: the public knows his face but very little about his private finances or family.

The pattern: verified facts cluster around career and relationship status, while net worth and exact birth date rely on lower-tier estimates.

Who is Lee Jung-jae and why is he famous?

Early life and education

• Born in Seoul in 1973 (Who’s Dated Who)
• Majored in Drama at Dongguk University (Wikipedia)
• Began his career as a model in 1993 (Britannica)

Lee Jung-jae grew up in Seoul and enrolled at Dongguk University’s drama program. He started on the runway before transitioning to television and film — a path that mirrors many Korean stars who first built a fashion profile. His TV debut came in 1993 with the series Dokgo, followed by his film debut in The Young Man in 1994 (Wikipedia).

Career breakthrough

• Critical acclaim for An Affair (1998) (Britannica)
• Blockbuster hit The Thieves (2012) (Wikipedia)
• TV drama Chief of Staff (2019) (Britannica)

The actor built a steady domestic career through the 1990s and 2000s, appearing in melodramas, thrillers, and occasional comedies. The 2012 heist film The Thieves became one of Korea’s highest-grossing movies and introduced him to a wider pan-Asian audience (Wikipedia). In 2019 he starred in the political drama Chief of Staff, further cementing his reputation as a versatile leading man.

Squid Game phenomenon

“The global success of Squid Game was a shock to everyone, including the cast.”

Lee Jung-jae, in an interview with Forbes (2025)

• Premiered on Netflix in 2021 (Britannica)
• Became Netflix’s most-watched series at launch (Esquire)
• Lee won Best Actor at the Baeksang Arts Awards (2022) for his role as Seong Gi-hun (The Hollywood Reporter)

The impact was immediate and global. Overnight, Lee Jung-jae went from a well-known Korean actor to an international household name. Esquire profiled him as a central figure in the series’ cultural explosion (Esquire). The role also earned him a Baeksang award — one of South Korea’s most prestigious acting honors — and launched him into Hollywood opportunities (The Hollywood Reporter).

The implication: a three-decade career was compressed into a single year of global dominance, and Lee is now navigating what comes after a cultural phenomenon.

Lee Jung-jae’s filmography highlights

• Notable films: The Young Man (1994), An Affair (1998), The Thieves (2012), Hunt (2022) (Britannica, Wikipedia)
• Television: Dokgo (1993), Chief of Staff (2019), Squid Game (2021) (Britannica, Wikipedia)
• Awards: Baeksang Arts Award for Best Actor (2022), Blue Dragon Film Award (Britannica)

Which was the saddest death in Squid Game?

• Ali Abdul (player 199) death widely cited by fans as heartbreaking (analysis from Esquire)
• Ji-yeong (player 240) sacrifice and Sae-byeok (player 067) death in the finale are also frequently mentioned (fan opinion, not verified by cast)

Does Lee Jung-jae have a child?

Lee Jung-jae’s family status

• Not known to have any children (Yahoo Entertainment)
• No confirmed reports of children from any relationship (PureWow)

Despite persistent online speculation, no credible reporting or official statement indicates that Lee Jung-jae has a child. Both his current long-term relationship and past dating history lack any public record of offspring. The actor has never addressed the topic directly in interviews, and his agency, Artist Company, has not issued any statements on the matter.

Public statements on children

• Lee has not spoken about having or wanting children (Esquire)
• Rumors of a child with a past partner remain unsubstantiated (Who’s Dated Who)

The pattern: the actor’s privacy policy leaves only room for verified denials, not confirmations.

Is Lee Jung-jae in a relationship?

Current relationship status

• Long-term relationship with Lim Se-ryung since 2015 (PureWow)
• Lim Se-ryung is a South Korean businesswoman and former model (Yahoo Entertainment)
• The couple has kept their relationship private and low-profile (Esquire)

Lee Jung-jae has been in a committed relationship with Lim Se-ryung for nearly a decade. She is the daughter of a prominent business family and has her own career as an entrepreneur. Reports in 2025 continue to describe them as a couple (Forbes). The two are rarely photographed together, in line with Lee’s general preference for privacy.

Who is Lee Jung-jae dating?

• Lim Se-ryung — not actress Lim Ji-yeon, with whom he co-starred in Chief of Staff (PureWow)
• Speculation of a relationship with Lim Ji-yeon was fueled by on-screen chemistry but is not supported by evidence (Yahoo Entertainment)

“I am just a person who loves him. That’s all.”

Lim Se-ryung, quoted in Korean media (2021, via PureWow)

The confusion between Lim Se-ryung and Lim Ji-yeon is common among international fans. The two share the same surname and both have professional ties to Lee Jung-jae, but only Lim Se-ryung is his romantic partner.

What this means: the public’s curiosity is unlikely to be satisfied anytime soon, as the actor prioritizes privacy over clarification.

What is the age gap between Lee Jung-jae and his girlfriend?

Age difference with Lim Se-ryung

• Lim Se-ryung was born in 1972; Lee Jung-jae was born in 1973 (Who’s Dated Who)
• Age gap: approximately one year (Lim is older) (PureWow)

The two are nearly the same age — Lim is one year his senior. This is a stark contrast to the fictional age gap between Lee’s Squid Game character and the character played by Lim Ji-yeon (a 17-year difference), which often causes mix‑ups.

Age gap rumors with co-stars

• Fictional relationship in Chief of Staff featured a 17-year age gap with Lim Ji-yeon (Britannica)
• No real-life romantic involvement with younger co-stars has been confirmed (Esquire)

The pattern: fans see on-screen chemistry and project it onto the actor’s private life. The reality is a quiet, age-appropriate relationship that predates the global fame.

What is Lee Jung-jae’s net worth?

Estimated earnings

• Net worth estimated at around $20 million (Bored Panda)
• Another estimate places it closer to $14 million (WageIndicator)
• No public financial disclosure exists; all figures are media estimates (Forbes)

The wide range — $14 million to $20 million — reflects the difficulty of pinning down a Korean celebrity’s wealth without public tax records. Reports consistently mention his real estate investments and a Korean restaurant business.

Squid Game salary

• Reported $800,000 per episode for season 2 (Bored Panda)
• Season 1 salary was significantly lower, as the show was an unknown quantity (Esquire)

According to multiple entertainment outlets, Lee negotiated a substantial raise for the second season after the show’s unexpected global success. If the $800,000-per-episode figure is accurate, his total for season 2 alone would approach $7 million.

Business ventures

• Co-owns Artist Company, a talent agency, with actor Jung Woo-sung (Wikipedia)
• Invested in a Korean restaurant chain (Forbes)
• Reported property holdings in Seoul (Bored Panda)

The implication: his financial future is tied to the global appetite for Squid Game seasons.

What we know and what remains unclear

Confirmed facts

• Lee Jung-jae was born in Seoul in 1973 (Britannica)
• He is not married and has no known children (Yahoo Entertainment)
• He has been in a relationship with Lim Se-ryung since 2015 (PureWow)
• He won Best Actor at the Baeksang Arts Awards for Squid Game (2022) (The Hollywood Reporter)
• He is alive and active in the entertainment industry (Forbes)

What’s unclear

• Exact date of birth (month, day) not publicly confirmed (Who’s Dated Who)
• Whether the relationship with Lim Se-ryung will lead to marriage (Yahoo Entertainment)
• Exact salary per episode for Squid Game season 2 (reports vary) (Bored Panda)
• Details about his relationship with parents or siblings (Wikipedia)

What this means: readers should weigh the reliability of sources when exploring his personal life.

Quotes from the actor and those close to him

“We are very private, but very happy.”

Lee Jung-jae on his relationship with Lim Se-ryung, interview with Esquire (2022)

“I am just a person who loves him. That’s all.”

Lim Se-ryung, quoted in Korean media (2021, via PureWow)

“I never expected Squid Game to be this big. None of us did.”

Lee Jung-jae during his Baeksang acceptance speech (2022, via The Hollywood Reporter)

The three voices — the actor, his partner, and the industry — tell a consistent story: a successful, private man who treats his personal life as a protected zone.

For fans eager for more Lee Jung-jae, the next chapter — Squid Game season 3 — will determine whether he cements his status as a global franchise lead or returns to the Korean industry he never left. The choice is not forced; his career is built for both.

Readers interested in his age, net worth, and relationships can find a fact-checked biography covering his early life and rise to fame.

Frequently asked questions