Publisher: DC Comics
Created by Doug Moench, Dick Giordano and Joey Cavalieri
1st appearance: Detective Comics #546, (January 1985)
Real Name: Onyx Adams
Weight: 146 lbs Height: 5’9
Eyes: Brown Hair: Black (shaved bald)
Known Relatives: unknown
Skills and abilities: Highly proficient in the martial arts and an assortment of weapons. She is a self taught street fighter honed by training under Lady Shiva who also taught Batman and Robin. She later was trained by a sect of monks dedicated to martial arts.
Onyx grew up in the ghettos of star city where she had to fight to survive. As a means of survival she also became a hired killer. Her skills brought her to the attention of the league of assassins who took her in. It was here under the tutelage of Lady Shiva the dc universes premier martial artist who years later would train Batman and Robin that her skills became world class. It’s unknown why she parted ways with the league but she found refuge with the sanctuary; an ancient ashram dedicated to the study of the martial arts. After proving her skill and desire to atone for her past she was granted membership. It is here that she joined the monks and shaved her head bald. Years later one of the monks tried to seize control of the sanctuary but was thwarted by herself and Connor Hawke the green arrow. Still unable to find peace she returned to star city before being requested by batman to assist Orpheus in Gotham city . After his death she still operates as a freelance vigilante in Gotham City and is considered an ally of the Batman. She was also one of only a handful of people whom Cassandra Cain considered friends.