Wayne Bronson is a mercenary for hire, whose mysterious past is completely in the dark. Since there can be absolutely no official records of him found, it‘s even uncertain if Wayne Bronson is his real name.
Deathwish suffers from a genetic defect known as congenital analgesia – a rare condition in which a person cannot feel (and has never felt) physical pain due to an increased production of endorphins in the brain. This incapability to feel physical pain of any kind sounds beneficial since it allows him to still think clearly, continue to fight, and generally function in situations where pain would disable a normal person, but not feeling any pain is actually an extremely dangerous condition since it also leaves him ignorant to crippling injuries, which may disable him without even realizing why.
Thankfully, he also has an accelerated cellular regeneration which enables him to heal minor wounds such as cuts, bruises and light burns faster than normal and even recover from minor to moderate blood loss. But this „healing factor“ is limited – he can‘t regenerate critical wounds such as lost of limbs, damaged nerves, and internal organs or fatally damaged cells such as by burning, as such wounds will simply close up faster – resulting in permanent scarring.
Nevertheless, these unique abilites make him a powerful combatant who always remains calm through stressful or painful situations, tolerates extreme hunger, unbearable thirst, and strong urges to sleep and can operate on a low power setting for an extended amount of time despite grievous injuries.