: The leader of the "Militia," a violent faction within The Beach that often clashes with Hatter's followers.

: An executive at The Beach who uses the "Light Bulb" game to test Arisu's intelligence. Technical File Details Based on the filename provided: Alice in Borderland Episode 5 and 6 Summary and Review

This episode introduces several major supporting characters who become central to the series:

: Arisu participates in a Four of Diamonds game titled "Light Bulb." Players must identify which of three switches correctly turns on a light bulb in a room with a closing door. Key Character Introductions