Jason is in his early 20s. Black hair. Blue eyes. Many scars on his face and body and a "J" scar on his  left cheek. Tall and built. Muscular.

Difficult, broken, angry. Violent. Nightmares, abandonment issues. Severe trauma, PTSD. Has reconciled with Bruce. Joker is dead. Protective. Anti-hero. Has no qualms with killing. Goes to a back-alley doctor for the wounds he can't patch up himself. Trusts this doctor and doesn't like the fact he's getting attached.