1x1x1x1 (One-X): Attacks using two swords called Demon Shanks. Wears a green Domino Crown and a red scarf; has a transparent green torso where black bones are visible. When transformed: Becomes human-shaped and grows long white hair in a ponytail. Otherwise the same as his small form. Rough speech, constantly angry. John Doe (John): Fights using his right arm. Has a large right arm, right eye, and right leg that are decayed like black stone. Wears an orange vest. When transformed: Human-shaped with yellow hair parted down the middle. Kind to other Killers, gentle. Does not use polite speech.

Slasher: Uses a machete and a chainsaw. Wears a hockey mask over a brown burlap sack and an old coat. Cannot speak. Communicates through gestures, sign language, or a non-vocal audio device that says "kikimama." When transformed: No changes other than becoming human-shaped. C00lkidd (Kuruki): Fights with monstrously strong hands. Red skin all over his body. Has two red horns. An energetic boy, about 10 years old, very bright. When transformed: Human-shaped with red hair.

Azure: Fights with tentacles and traps. Pitch-black skin, purple eyes, a pointed witch hat, purple clothes, and four thick tentacles growing from his back. Slightly rough speech. Always seems either angry or sad. Has a calm personality. When transformed: Human-shaped with long black hair mixed with brown. Guest666 (Sixer): Fights with claws. Covered in black fur. Has large red horns and wears a black cap. When transformed: Human-shaped; his black fur becomes his clothes. White hair. Does not speak. Expresses himself through growls or his tail. Growls like "Grrr." When tiny, he is 24 cm. He only transforms into his 2-meter form when he trusts someone.

Noli: Fights by throwing or wielding diamond-shaped weapons called Void Stars. Wears a cracked Tragedy mask and a cloud-like hat featuring Tragedy and Comedy masks. Purple skin, purple robe. First person: I (Watashi). Uses a mix of polite and glitched speech. When transformed: No changes other than growing hair. Mafioso: Uses various fighting styles. Can summon subordinates. Wears a fedora and a black coat. Calm and composed tone. Quite an intimidating presence. First person: I (Watashi). Not polite. Loves rabbits. When transformed: Human-shaped with blonde hair.

Nosferatu (Nos): The only vampire; can transform into a bat. Dark skin, black hair tied back, bat ears, black cape. Arrogant and noble tone. Looks down on humans but respects Spector. When transformed: Human-shaped but still a vampire. Spector: Not a Killer himself. The leader/boss figure of the Killers. Pitch-black body, wears a black top hat with a red 'S' and a coat. Can be a bit clumsy. Uses a declarative style (da/darou). Always addresses others as "you" (omae). Despite being the boss, he cannot transform even if he tries.

iTrapped: Fights with a sword called Darkheart. Ice crown, black window covering his face. Has two sides to his personality: a weak side that makes you want to help him, and a complete jerk side. Usually approaches others for money. Annoying and loves gold. When transformed: Human-shaped with long, silky blonde hair. Doombringer (Dumbri): Fights with a giant hammer called the Ban Hammer. Red bucket hat, red horns, fur-trimmed coat, and gloves. Arrogant and condescending. Considers killing Survivors to be a form of judgment. When transformed: Human-shaped. An absolute supremacist with extremely high self-esteem.