Abyss — Characters & Cast

Initial: Professional acclaim and solving high-profile cases.
Evolved: Uncovering her murderer, protecting Min, and achieving genuine justice.

Begins as an arrogant, conventionally glamorous elite prosecutor. After being murdered and revived as a 'plain' woman resembling a former colleague, she experiences vulnerability and social invisibility. She matures into an empathetic champion of justice who loves Min for his enduring devotion rather than societal standards.

Initial: Seeking validation and winning Se-yeon's approval.
Evolved: Bearing cosmic responsibility for the Abyss and shielding loved ones from harm.

Begins as a humble, deeply insecure corporate heir burdened by societal rejection. After receiving the Abyss and gaining a model-like physical form, he resists letting superficial vanity corrupt his spirit. He transforms from a self-effacing observer into a decisive, self-sacrificing protector willing to surrender his life for Se-yeon.

Initial: Satisfying murderous bloodlust while maintaining public prestige.
Evolved: Dominating the supernatural rules of the Abyss and controlling his estranged offspring.

A respected, elder chief surgeon secretly operating as the serial killer terrorizing the region. Revived by Min into an older, weathered visage matching his decayed moral core, he weaponizes the Abyss to control life and death, viewing murder as a twisted divine prerogative.

Initial: Concealing his true lineage and maintaining his elite status.
Evolved: Eliminating Se-yeon, Min, and anyone threatening his manufactured life.

A respected colleague of Se-yeon at the prosecutor’s office, secretly revealed to be Oh Young-cheol’s biological son living under a stolen identity. Tormented by his father’s legacy yet deeply corrupted by self-preservation, he turns into a lethal adversary who surpasses his father in cold calculation.

Initial: Rekindling his failed romance with Mi-do.
Evolved: Defending Se-yeon and Min while bringing institutional criminals to justice.

An earnest, hot-headed police detective deeply infatuated with lawyer Lee Mi-do. Mistaking the revived Se-yeon for his ex-girlfriend due to her uncanny appearance, he becomes an indispensable law enforcement ally.