List of DC Comics characters: O

Chief Miles Clancy O'Hara is a member of the Gotham City Police Department in the DC Universe based on the character of the same name from the television series Batman, portrayed by Stafford Repp.

The character, as adapted by Edmond Hamilton and Curt Swan, first appeared in the DC Universe in World's Finest Comics #159 (August 1966).

Eventually, O-Sensei seeks the aid of Lady Shiva, Batman, Green Arrow, and the Question in returning to Japan to fulfill a vow to his late wife, only to be killed by a typhoon.

[3][4] This version is the caretaker of Nanda Parbat who, prior to the film's events, previously trained Lady Shiva, Batman, Jade, and Rip Jagger in addition to Bronze Tiger and Richard Dragon and sacrificed himself to close the gateway to Nāga's dimension.

Ogre is a DC Comics character who appeared in Batman #535 (October 1996), created by Doug Moench and Kelley Jones.

In the end, the Ape died and the Ogre wandered amidst the city alone in a story analogous to Mary Shelley's Frankenstein.

Over the next decade, he adopted the alias of "Jason Lennon" and became a serial killer targeting young and attractive successful women, kidnapping and keeping them for weeks or months and later murdering and dumping them in various places of Gotham, leaving behind a hand-made drawing of a broken heart.

Due to their loved ones being threatened, the Gotham City Police Department (GCPD) allow Jason to continue unimpeded, giving him the nicknames the "Ogre" and the "Don Juan Killer".

Throughout the episodes "Beasts of Prey", "Under the Knife" and "The Anvil or the Hammer", Jim Gordon and Harvey Bullock attempt to stop Jason, who kidnaps Barbara Kean and forces her to commit a murder.

[7] A former member of the League of Assassins, Onyx forsook that life and joined the same ashram monastery that the Green Arrow once belonged to.

[15] Revealed in For Tomorrow, he's a black-ops specialist working in the field of cybernetics labeled Project M helped to create Equus[16][17] to battle Superman, as well as transforming Ron Evers, a friend of Vic Stone/Cyborg into a weapon.

They created a "Cyborg Revenge Squad" consisting of Shrapnel, Gizmo, Magenta, Girder, Thinker, and Cyborgirl.