Nam-Gyu, also known as Player 124, is a jittery and vengeful contestant in Squid Game season 2, portrayed by South Korean actor Roh Jae-won as one of the series’ most unsettling antagonists. Here’s what we know for certain — and what remains speculation.
Actor: Roh Jae-won ·
Series: Squid Game (2021–2025) ·
Role: Player 124, antagonist ·
Affiliation: X (vengeance plot against Se-mi)
Quick snapshot
- Character name: Nam-Gyu (Radio Times)
- Player number: 124 (Radio Times)
- Portrayed by Roh Jae-won (IMDb)
- Exact age and birthday – not confirmed canonically
- Full backstory (prior to the games) – fan wiki speculation
- Sexual orientation – no canonical statement
- Appeared in Season 2 (Dec 2024) and Season 3 (Jun 2025) (Wikipedia)
- Originally planned to portray a different character (Hyun-ju) (Squid Game Wiki)
- Character arc completed with his death in the series (Squid Game Wiki)
- Actor Roh Jae-won moved on to other projects after Squid Game season 3 (Squid Game Wiki)
Six key facts about Nam-Gyu, one pattern: the character is driven by vengeance and addiction, making him one of the most layered villains in the series.
| Label | Value |
|---|---|
| Full Character Name | Nam-Gyu |
| Player Number | 124 |
| Portrayed By | Roh Jae-won (IMDb) |
| Series | Squid Game (2021–2025) |
| Character Type | Antagonist |
| Defining Trait | Sadistic, vengeful, addicted, anxious |
What is Nam-Gyu’s real name?
Nam-Gyu is the stage name of the character; the actor behind the role is Roh Jae-won, a South Korean performer born in 1993 (Wikipedia). In the series, he is simply called Nam-Gyu and assigned the number 124. The character is a contestant who enters the deadly games alongside other desperate individuals.
Who is the actor that plays Nam-Gyu in Squid Game?
Roh Jae-won is the actor credited as Nam-Gyu across both seasons 2 and 3 (IMDb). Before landing this role, he was reportedly in consideration to play Hyun-ju, a different character (Squid Game Wiki). His performance as the jittery, volatile Player 124 has drawn attention for its intensity.
“Letting go of Nam-gyu felt like my heart had a hole.”
Roh Jae-won, quoted in The Times of India
What is Nam-Gyu’s role in Squid Game?
Nam-Gyu is a contestant who becomes a major antagonist. He is known for his sadistic behavior and his role as the arch-enemy of Se-mi (Player 120) and the arch-nemesis of Park Min-su (Villains Wiki). Fan wikis describe him as a former nightclub worker with a drug history who joins the games to pay off debts — though this backstory is not officially confirmed.
Roh Jae-won’s portrayal turns a minor antagonist into a memorable character, but the lack of canonical backstory leaves fans filling in the gaps with speculation.
The implication: Roh Jae-won’s emotional investment in the role adds depth to a character that might otherwise be a one-note villain.
Is Nam-Gyu a villain?
Yes, Nam-Gyu is consistently classified as a villain. The Squid Game Wiki labels him a major antagonist of Season 2 and the secondary antagonist of Season 3. His actions — including his vengeance plot against Se-mi and his ruthless behavior during the games — cement his role as a clear antagonist.
Is Nam-Gyu a sadist?
Fan analysis often describes him as a sadist. On Reddit, users characterize him as an “evil psychopath” driven by anxiety and low self-esteem (Reddit fan analysis). The Villains Wiki likewise notes his cruel streak. However, no official source from Netflix or the show’s creators has confirmed a clinical diagnosis; the label remains a fan interpretation.
Does Nam-Gyu have a crush on anyone?
Fan shipping communities have created the “Thangyu” ship (Thanos and Nam-Gyu). There is no canonical evidence that Nam-Gyu harbors romantic feelings for Thanos or any other character. The ship is purely speculative.
The gap between fan speculation and canonical fact is wide for Nam-Gyu. Readers should treat any claim about his personality or motivations as unverified unless sourced directly from the show.
The pattern: Without official confirmation, these character traits remain in the realm of interpretation.
Does Nam-Gyu die?
Yes, Nam-Gyu’s death is confirmed in the series. According to the Squid Game Wiki, he is killed indirectly by Se-mi (Player 120), his arch-enemy. The exact circumstances of his death occur in Season 3 and serve as a key plot point that resolves the rivalry between the two characters.
How did Nam-Gyu die in Squid Game?
He dies during the games at the hands of Se-mi’s actions. The Radio Times identifies him as Player 124 in Season 3, and the narrative arc confirms that his end is a direct consequence of his own vengeful behavior.
What is the saddest death in Squid Game history?
While many fans consider deaths like Ji-yeong’s or Ali’s the saddest, Nam-Gyu’s death is often discussed as tragic in a different way — his descent into addiction and cruelty makes his end feel inevitable rather than poignant. The Reddit community frequently debates this, but there is no official ranking.
Clarity check
Confirmed facts
- Nam-Gyu is played by Roh Jae-won (IMDb).
- Nam-Gyu is a villain in Squid Game (Squid Game Wiki).
- Nam-Gyu dies in the series, killed by Se-mi (Squid Game Wiki).
What’s unclear
- Nam-Gyu’s exact age and birthday.
- Nam-Gyu’s real full name (canonical).
- Nam-Gyu’s sexual orientation.
- The precise meaning of the name “Nam-Gyu” in this context.
Perspectives on Nam-Gyu
“Nam-gyu is a major antagonist in Squid Game.”
“He is an evil psychopath with anxiety and low self-esteem.”
Reddit user analysis, Squid Game subreddit
“Nam-gyu wanted to be the coolest and most special person.”
Roh Jae-won, quoted in The Times of India
What’s clear is that Nam-Gyu is a deliberately unsettling character who leaves a strong impression despite limited screen time. The actor’s own farewell to the role suggests a deep emotional investment in a character that many fans love to hate. For viewers trying to understand the Squid Game universe, Nam-Gyu functions as a cautionary figure: someone who lets his worst impulses take control, with fatal consequences. Roh Jae-won’s performance ensures that even secondary villains like Nam-Gyu leave a lasting impression on viewers.
hate-sink.fandom.com, imdb.com, tr.wikipedia.org, en.wikipedia.org, reddit.com, dublinobserver.net
Frequently asked questions
What player number is Nam-Gyu?
Nam-Gyu is Player 124 (Radio Times).
Who kills Nam-Gyu in Squid Game?
He is killed indirectly by Se-mi (Player 120) (Squid Game Wiki).
Is Nam-Gyu based on a real person?
No, he is a fictional character created for the series.
What are Nam-Gyu’s motivations in Squid Game?
According to fan wikis, he joins the games to pay off debts and seeks vengeance against Se-mi. No official motivation is provided by the show.
Does the actor Roh Jae-won have other roles?
Yes, Roh Jae-won has appeared in other Korean productions, though he is best known for Nam-Gyu in Squid Game (Wikipedia).
Oliver Jack Carter Cooper is a staff writer for EveningLedger.uk, covering UK news, politics, business and culture. He works under Editor-in-Chief Edward Langley and Managing Editor Charlotte Reeves, following the newsroom standards for sourcing, verification and fact-checking set out in our editorial policies.