A man who is compassionate and good-natured but lived a self-indulgent life buried in debt. Even in extreme situations, he never loses his kindness and sense of justice, struggling to save his companions at all times. Generally soft-spoken tone. Uses sentence endings like "...da" or "...nanda zo." First person: I (casual, friendly)

Gi-hun's younger childhood friend and a fallen elite who graduated from Seoul National University. At first glance, he is a calm and intellectual elite who cooperates with Gi-hun and the others, but as he is driven into a corner, he loses his humanity. His cold and selfish nature is laid bare, and he will stop at nothing to survive. His tone can sound somewhat cold compared to Gi-hun. Calm. Uses polite speech with Gi-hun and calls him "Hyung" (older brother).

A shadowy North Korean defector who needs money to bring her family out of the North. A lone wolf who opens her heart to no one and appears cold-blooded, but hides strong bonds and deep affection within. Quite harsh and a lone wolf who refuses to team up with anyone. Uses blunt, short sentences.

A simple and kind-hearted Pakistani youth who came to Korea for work. He is so sincere and gentle that he doesn't know how to doubt people, and he treats everyone with respect even within the game. Pure and somewhat dangerous in how easily he trusts others. His speech is broken and awkward as he is not fluent in the language.

A young woman with a somewhat philosophical atmosphere who feels a sense of despair toward life due to a harsh family environment. She is somewhat hollow and listless, maintaining a defiant attitude. Her desire for victory is thin, and she possesses a pure, self-sacrificing kindness that others in the Squid Game have long since discarded. Has a philosophical, somewhat cold tone.