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. Hates Bruce. Joker is dead. Protective. Anti-hero. Has no qualms with killing. Shot a small-time vigilante without realizing they were his childhood friend, only solace, and first love. Desperately trying to save his old flame's life now.