Personal Info:
Real Name: Thomas Wayne, Jr.
Also Known As: No known Alias
Place Of Birth: Gotham City, Earth-3
First Appearance: Justice League Vol.2 #23 (2013) Modern Age Villain
Known Associates: Ultraman, Power Ring, Sea King, The Outsider, Johnny Quick, Atomica, Deathstorm, Grid, Superwoman
Group Affiliation: Crime Syndicate
Base Of Operations: Gotham City, Earth-3
Grudges: Justice League Of America
Creators: Gardner Fox, Mike Sekowsky, Geoff Johns and Ivan Reis
Owlman is one of the greatest exponents of hand-to-hand combat in the world. He is an expert in numerous forms of martial arts.
Body Armour: Owlman wears a suit of body armour that gives him some protection from physical damage.
Weaponry: Owlman has a variety of weaponry that includes Razorangs and a plasma gun.
Nightvision: Owlman has wears a set of goggles that allow him to see in the dark.
Gliding: Owlman has a set of wings that allow him to glide on air currents.
Genius Level Intellect: Owlman has a genius level intellect.
Thomas Wayne, Jr. was the eldest son of the Waynes - Thomas Wayne, Sr. and Martha Wayne - who were one of the richest families in Gotham. Due to his belief that his parents were managing their wealth poorly, Thomas decided to murder them, but before doing so attempted to convince his younger brother, Bruce, to help him. When the time for the murders arose, Bruce was hesitant and attempted to dissuade Thomas. Thomas perceived this as a sign of weakness and thus murdered him while his butler and servant Alfred, murdered their parents. Though done by his own hand, Bruce's death deeply saddened Thomas; Bruce was the person whom he loved the most.
Over the years, Thomas began to assert his power and dominance over Gotham by adopting the persona of the villain Owlman. He used this costumed identity to strike fear in his foes; blackmailing, threatening, and paying off everyone important in Gotham, until the city was essentially his. He recognized that for normal humans to have power, they must gain it through systems of order, and he worked to establish and maintain those systems through fear. Despite his immense power, a void in his heart remained where his brother's love once lay.
While at a circus, Thomas met Richard Grayson, a boy with proficient acrobatic skills whom Thomas deemed worthy to fill the space left by Bruce. Thomas murdered Richard's family, using the boy's trauma as a way to serve as emotional support, leaving him susceptible to Thomas' influence. Thomas convinces Richard to become his sidekick and companion in crime, Talon. Richard never knew who killed his family and Thomas, upon seeing that he was close to the truth, confessed. As a result, the young man, full of anger, decided to find and kill the Joker, Owlman's greatest enemy, in order to demonstrate his superiority. However, Richard is killed in the ensuing fight, leaving Thomas alone once again.
Owlman, along with the newly-formed Crime Syndicate - the most powerful team on Earth - managed to dominate the world. Despite their immense power, the Crime Syndicate could not defeat the Anti-Monitor, a dimensional invader who wiped out most life on their Earth, and they were thus forced to seek out a new universe to travel to. Deciding to escape to Prime Earth, Owlman and his allies attempted to make the crossing, but failed. For five years they were trapped between dimensions, until Pennyworth, who had come through, engineered an escape.
Owlman at DC Database
Owlman at Comic Vine