Cast of All of Us Are Dead – Complete Cast and Character Guide

The Netflix survival horror series All of Us Are Dead assembled an ensemble of emerging and established Korean actors to portray students and faculty trapped during a synthetic virus outbreak at Hyosan High School. The cast navigates a 12-episode arc where scientific experiments, bullying hierarchies, and infection crises determine survival against both undead hordes and human antagonists.

Released on January 28, 2022, the series centers on protagonists Nam On-jo and Lee Cheong-san while introducing one of the genre’s most disturbing villains in Yoon Gwi-nam. The performance roster blends youthful leads with veteran character actors portraying faculty members whose decisions shape the outbreak’s catastrophic trajectory.

Cast of All of Us Are Dead Season 1

• Yoo In-soo portrays the hybrid “hambie” antagonist Yoon Gwi-nam, a scientifically distinct threat retaining human intellect while exhibiting zombie aggression.
• Cho Yi-hyun appears as class president Choi Nam-ra, undergoing significant evolution from aloof academic to decisive group leader.
• The faculty roster includes cell biologist Lee Byeong-chan, whose experiments originated the outbreak, and Dean Jung Yong-nam, portrayed by Yoon Kyung-ho.
• The AsianWiki cast listing documents the ensemble structure mixing established veterans with breakthrough performances.
• IMDb credits confirm the 12-episode season structure released simultaneously on Netflix.
• Lomon joins the core group as Lee Su-hyeok, whose romantic interest in Nam-ra develops amid the quarantine crisis.
• Park Ji-hu and Yoon Chan-young anchor the narrative as On-jo and Cheong-san, navigating both zombie attacks and complex social dynamics.

All of Us Are Dead Season 2 Cast and Release Date

Production Status

Netflix confirmed development of a second season following the January 2022 premiere, though source materials indicate no cast, character, or episode specifics have been officially released. The platform has not announced premiere dates or production timelines.

Returning Characters

The Season 1 finale suggested Lee Cheong-san’s likely survival, while Yoon Gwi-nam’s fate remains deliberately ambiguous after falling down an elevator shaft during the school bombing. This open-ended conclusion teases potential returns for both characters, though contract negotiations and script developments remain private.

Key Characters in All of Us Are Dead

The Antagonist: Yoon Gwi-nam

Yoo In-soo plays the primary antagonist Yoon Gwi-nam, a bully who transforms into a “hambie”—a hybrid retaining intelligence while exhibiting zombie aggression. He wears distinctive light clothing and wields a kitchen knife against both undead and human targets, pushing victims into hordes to facilitate his escape. His pre-outbreak gang includes Son Myeong-hwan, Park Chang-hoon, and Kim Hyeon-ju, though he ultimately betrays them to the infected.

Faculty Members

Several adults occupy critical roles amid the chaos. Lee Byeong-chan, the science teacher and former cell biologist, created the virus after his son suffered bullying by Gwi-nam’s gang. Jung Yong-nam, the dean portrayed by Yoon Kyung-ho, serves as an administrative antagonist. Ms. Park, the homeroom teacher, provides moral authority, spotting cheaters and ultimately sacrificing herself while pursuing Lee Na-yeon after the student murders Gyeong-su.

Student Survivors

Choi Nam-ra, played by Cho Yi-hyun, functions as the disciplined class president who gradually connects with Su-hyeok despite her initial reservations. Lee Na-yeon appears as a complex figure whose actions trigger Ms. Park’s fatal intervention. The core group includes On-jo and Cheong-san, whose friendship anchors the narrative as they navigate the collapsing school infrastructure and military quarantine.

All of Us Are Dead Episode Count and Basics

The first season consists of 12 episodes released simultaneously on January 28, 2022. The narrative follows Gwi-nam’s evolution from cafeteria bully to quarantine camp threat, maintaining continuous tension through the school bombing climax.

All of Us Are Dead Release Timeline

1. Pre-Production: Casting finalized with Park Ji-hu, Yoon Chan-young, and Yoo In-soo attached to primary roles.
2. January 28, 2022: Netflix releases all 12 episodes of Season 1 globally.
3. Post-Release: Netflix confirms Season 2 development; series documentation tracks the announcement.
4. Current Status: Awaiting official announcements regarding Season 2 cast additions and premiere dates.

Established Facts and Outstanding Questions

The Narrative Framework

The series operates within the Korean survival horror tradition, trapping its ensemble cast inside Hyosan High School during a synthetic virus outbreak. The narrative distinguishes itself through the “hambie” concept—partially infected humans who retain strategic thinking while lacking moral restraint. This scientific element, combined with pre-existing bullying hierarchies, creates a dual threat structure where human antagonists prove as dangerous as the undead.

The faculty characters provide institutional context, contrasting the principal’s negligence against Ms. Park’s heroic intervention. Meanwhile, the student cast navigates both biological and social contagion, with the virus amplifying existing power dynamics rather than creating a blank slate for heroism.

Attribution and Commentary

“Yoon Gwi-nam is the main antagonist of All of Us Are Dead Season 1, a bully at Hyosan High School who becomes a ruthless ‘hambie’ (half-zombie) after infection, retaining his intellect while gleefully biting and infecting others.”

— All of Us Are Dead Fandom Wiki

“Serious, aloof top student who initially ignores Su-hyeok’s interest but becomes a vital group survivor during the outbreak, shedding her shell despite doubts.”

— Collider Cast Character Guide

Cast Overview

The cast of All of Us Are Dead Season 1 delivers performances across 12 episodes of continuous zombie horror, with Park Ji-hu, Yoon Chan-young, and Cho Yi-hyun leading the student survivors against Yoo In-soo’s terrifying Gwi-nam. While Season 2 confirmed development, specific cast returns and premiere dates await official Netflix announcement.

Frequently Asked Questions