Dick Grayson is one such example, having outgrown the mantle of Robin when he was under Batman and taken up the new identity of Nightwing.

Damian is rescued by Nightwing who then tries to escape but is shot down by Black Mask's men.

This idea, that Robin is in fact Dick Grayson, is further supported in Teen Titans in an episode in which Starfire travels to the future, and Robin has taken the identity of Nightwing.

Van-Zee is a Kandorian scientist who is secretly Nightwing.

Shortly after a struggle with Jericho, who it is revealed is under control of the numerous people that he has taken command of over the years, Nightwing resigns from the Titans, due to his new responsibilities in Gotham.

He saves Dick Grayson, who is working undercover during the Gotham Gang War between Penguin and Tobias Whale and deduces that Grayson is Nightwing.

Nite-Wing is shot on his first night out and Dick Grayson, as Blüdhaven's protector Nightwing, defends him from Blockbuster's gang, who think it is Nightwing who has been injured.

In Action Comics # 875, that Nightwing is revealed as the son of Zod and Ursa, Chris Kent.

The " Nightwing " identity is revealed to be based on a mythical Kryptonian creature, whose existence is intertwined with that of its partner beast, the Flamebird.

* In the DC Comics " Tangent Comics " fifth-week event, " Nightwing " is a mystical society.

With a defenseless city to call his own, Nightwing decides to remain in Blüdhaven until Blockbuster's cartel is broken.

At the end of the arc, Nightwing is responsible for killing the Joker against the wishes of Batman and Oracle.

Nightwing is chosen to be leader until the original JLA are found, leading the group against the powerful Atlantean sorceress Gamemnae and helping to revive Aquaman to ask for his help in sinking Atlantis, but subsequently returns to the reserve list.

Deathstroke takes revenge on Nightwing when Blüdhaven is destroyed by the Society.

Prime is ready to kill Nightwing when Conner intervenes, sacrificing himself to destroy the tower, ending the destruction of the Universe.

While Nightwing is hesitant, due to his engagement with Barbara, she encourages him to go and returns his engagement ring so he can make an honest decision for himself.

During the events of the Battle for the Cowl, Nightwing is said to have become unapproachable and less emotional.

In the Titans of Tomorrow storyline, Batwoman said that Starfire would have a wonderful future with Nightwing.

Before they vanish, Batman instigates a contingency plan, in which a handful of heroes would be assembled to create a new JLA, consisting of Nightwing, Green Arrow, the Atom, Hawkgirl, Major Disaster, Faith, Firestorm and Jason Blood.

Nightwing frees himself, wondering the relation between his experience and a mysterious voice who tells him that he is " supposed to be dead ".

" storyline, and due to Batman's apparent death, Nightwing feels his attention should be better aimed at protecting Gotham City.

Thinking Batman and Superman needed to be rescued from President Lex Luthor, a small team of superheroes, which includes such heroes as Superboy, Nightwing, and Robin, invade the White House.

With Vic's consciousness dormant, but his desire for companionship controlling the actions of the Technis ' planet, it began kidnapping former Titans members-his conscious mind so suppressed that he was not only searching for deceased Titans, but even sent one probe looking for himself as Cyborg-and plugging them into virtual reality scenarios, representing what he believed to be their " perfect worlds "; for example, Beast Boy was back with the Doom Patrol, Damage was spending time being congratulated by the Justice Society, and Nightwing was confronted by a Batman who actually smiled.

Indigo's presence would prove to be a major sticking point for Arsenal's last recruit: Nightwing.

This tragedy, told in Titans / Young Justice: Graduation Day # 1-3, led team leader Nightwing to disband the two groups ( though they would be reformed shortly thereafter as the Outsiders and the latest incarnation of the Teen Titans ).

In Tangent: Superman's Reign # 3, the Wildcat of Earth-9 is revealed to be a large humanoid cat creature, a member of the Nightwing organisation's Covert Ops team.

However, in the episode " Grudge Match ", a silhouette of Nightwing can be seen in one shot crouching amongst the stone gargoyles.

Batman and Nightwing discover a partial Amazo ( lacking several abilities ) in a weapons shipment, and manage to destroy the android by deactivating its individual abilities, such as using explosive batarangs to damage its leg ( preventing it from using the Flash's speed ) and covering its eyes with plastic explosive ( causing its eyes to be destroyed when it uses Superman's heat vision ), before finally destroying it with a missile from the Batmobile.

He proved to be quite formidable, but was subdued after Nightwing showed up to aid his former mentor.

Later on back at the Mount Justice, Nightwing confirms through a DNA test that Impulse is who he claims to be.

Implied to be in possession of the Venom steroid, he clashes briefly with Nightwing.

Though the trap was primarily intended for Lock-Up ( who would logically be enraged at seeing a criminal " walk " without serving his sentence ), Batman had correctly anticipated that Black Mask would be after the man as well ; along with Robin ( Tim Drake ) and Nightwing, he easily beat back the squad of False-Facers that Black Mask sent to kill the " traitor ".

In the sequel The Kingdom, Iris is recruited by Rip Hunter ( along with several other heroes of her generation-Ibn al Xu ' ffasch, Batman's son ; Nightstar, the daughter of Nightwing and Starfire ; and Offspring, the son of Plastic Man ) to try to stop a madman named Gog from altering the past, before discovering it to be unnecessary due to Hypertime.

She is also shown to be a leader of her generation, an active Titan whom others look to for inspiration and solution, a role once filled by her father Dick Grayson both as Robin and as Nightwing.

After Hush spares Bruce and Terry so that they can witness him in action of ' saving ' Gotham-Bruce directing the new Catwoman on how to treat Terry's injuries -, it is revealed that the new Hush is a clone of Grayson ; Waller, determined to provide the world with a Batman, cloned Grayson based on DNA and memory readings taken from after his last fight as Nightwing, believing that he was more stable than Bruce and would hence be easier to control.

Later, Rose and Joseph fly to New York to have lunch with Nightwing, after which they go to the original Titans Island and discover that someone has built a demented version of the original tower there.

Amy, however, feels the world needs Nightwing free and so prevents him from being charged.

Ra's attempts to take over Damian, but Batman breaks free just as Robin, Talia, Alfred Pennyworth, and Nightwing arrive to save him.

Bruce however, steadfastly refuses to allow her to become more involved than is absolutely necessary, due to his not wanting her to take the risks that Robin, Nightwing and Batgirl had.

Brother Blood brainwashed Nightwing, and attempted to take control of Raven's power.

The team's new line up consists of former New Teen Titans Nightwing, Flash, Donna Troy, Beast Boy, Raven, Cyborg, Red Arrow, and Starfire.

In order to give Damian time to escape, Nightwing offers himself up to the hit squad that is after them.

Starfire and Nightwing were overwhelmed by lust, and ended up having abrupt sex in the middle of their investigation.

However, both Nightwing and Batman catch up to Zsasz when he tries to escape for the final time and put him back in Arkham.

After Major Force attacks Nightwing, the players end up fighting Major Force and defeating him.

Soon Nightwing sets up shop in Blüdhaven, becoming its protector.

After Rose suffers a defeat at the hands of Batgirl, Deathstroke places her under the tutelage of Nightwing, who leads Slade to believe he has given up being a hero.

She teams up with Nightwing, Superman, the Veteran, Blue Jay and other heroes in fleeing their situation and gaining intelligence.

In Nightwing # 140, a mystery villain was shown to have stole the corpse of Ryan Kendall and later showed up wearing his arms and wings.