All of Us Are Dead — Characters & Cast

To survive and ensure her friends stay alive.

Initially an average student overwhelmed by romantic confusion, On-jo transforms into the group's tactical logician, drawing on survival knowledge taught by her firefighter father. She endures the loss of her best friend, father, and love interest, ultimately becoming a resilient figure who keeps the memory of lost peers alive.

Protecting On-jo and his classmates regardless of personal cost.

Moves from a quiet, secretly smitten childhood friend into an unyielding leader willing to face lethal danger. His rivalry with Gwi-nam drives much of the tension, culminating in his ultimate sacrifice to lure the horde away and save his classmates during the military airstrike.

Believing in genuine friendship and protecting her newfound allies.

Begins as an isolated, top-ranking class president with no friends. After being bitten by Gwi-nam, she transforms into a "hambie". Instead of succumbing to bloodlust, she uses her superhuman strength and sensory abilities to protect the group, eventually choosing to live among other hybrids to keep her friends safe.

Defending the group and keeping Nam-ra safe.

A former school delinquent who turned over a new leaf. Su-hyeok acts as the primary physical vanguard against the horde. His devotion to Nam-ra remains steadfast even after her infection, serving as her anchor to humanity.

Obsessive revenge and proving his absolute dominance.

Starts as a cowardly lackey in a bullying ring who kills the school principal to cover his tracks. Upon mutating into an immortal hambie, his latent inferiority complex transforms into pure sadism as he obsessively pursues Cheong-san throughout the school.