Oswald Chesterfield Cobblepot, better known as the Penguin, is the main antagonist of Batman Returns. He was Batman's arch-nemesis and the Red Triangle Circus Gang's leader and boss.
He is portrayed by Danny DeVito.
Around Christmas time in Gotham City, the aristocratic Cobblepots gave birth to a baby boy. Because the child was hideously deformed, they locked him in a black box, where he showed his first sign of homicidal tendencies when he attacked and possibly killed the family cat. Disgusted, they dropped their vicious baby in the sewers. Eventually the Cobblepot baby washes up onto the shore of the Arctic World exhibit show at the Gotham City Zoo.
Not much is known of his early life from then on, 30 years later, except that he runs off to join the Red Triangle Circus. Then when the circus returns to a town for two weeks which featured newly added to their freak-show: The Poodle Lady, The World's Fattest Man, and an Aquatic Bird Boy (Some believe that this was the Cobblepot baby). The circus's two week stay was put to an end early because while guests were at the circus, their children went missing. One of the freak-show performers vanished before he could be questioned, some say that it was the Aquatic Bird Boy who would have by this time have been nicknamed The Penguin by his fellow freaks.
The Penguin then retreats to the now abandoned Gotham City Zoo, in order to hide from the police. This is where his nickname is put to use rather literally. He goes back to the arctic World exhibit. Somehow, he was able to track down fellow members of the circus and they formed the Red Triangle Gang. The Penguin runs around the Gotham City sewers because there is an accesses way from the arctic world exhibit (the same way he floated in when he was a year old). He uses a duck vehicle from a skyride at the zoo to get around the sewers easily. This brings us to Christmas in Gotham City, when the Penguin is 33 years of age.
Millionaire businessman Maximillian Shreck is kidnapped by the Red Triangles and is brought to their leader, a short, deformed man known as "The Penguin" at his secret hideout. Penguin blackmails Shreck with incriminating evidence of his many crimes, such as the toxic waste from his clean textile plant, documents that proved that Shreck owns a few firetraps in Gotham, and his murdered partner Fred Atkins' hand. This prompted Schreck to agree in helping Penguin find out his true identity and his parents.
Shreck arranges for the Penguin to rescue the mayor's infant child from his own gang members. The plan works, and Penguin becomes a hero to all, with the exception of a suspicious Bruce Wayne (Batman's alter-ego). After finding out his original birth name of Oswald Cobblepot (as well as the names of Gotham's first born sons), Penguin eventually wins the approval of citizens of Gotham and, after being persuaded by Shreck to do so, intends to run for Mayor.
After he encounters Batman and Catwoman while taking a walk around his future constituency at night, Penguin is contacted by Catwoman the following day, who notes that she and Penguin share a hatred for Batman. Although Penguin states that he is already planning to sabotage the Batmobile, Catwoman notes that Batman would have more power as a martyr, and the only way to truly destroy him would be to frame him and turn him into one of the villains that he despises. Catwoman thought that the Penguin was there to help her, but all he cared about was returning to Gotham and revenge.
When the subsequent plan is put into action, Batman is framed for kidnapping and murder and finds himself trapped in the Batmobile under Penguin's remote control. However, Catwoman and Penguin's alliance falls apart when she rebuffs a sexual advance from him, and Penguin tries to kill Catwoman himself, although she successfully escapes with the use of his air bound umbrella before accidentally letting go and falling into a greenhouse, but she once again miraculously survives the attempt, counting as her third of nine lives. The Penguin's campaign to oust the current mayor is quickly destroyed when Bruce Wayne plays selected comments he made insulting the people of Gotham while controlling the Batmobile at one of Penguin's speeches, the most prominent phrase being, "You've got to admit, I played this stinking city like a harp from hell!" The people of Gotham get angry, forcing Penguin to defend himself with his gun umbrella, and the police chase after him. But Penguin flees into the sewers, and reveals his original plan: to kidnap and kill the first-born children of Gotham's most prominent families in revenge (comparable to the Pharaoh killing the first-born hebrew babies in the beginning of the Book of Exodus in the Bible).
Bruce meets Selina at a ball hosted by Shreck, where she reveals to him her intentions to kill Shreck. While dancing, the two subsequently discover the other's secret identity, but before they can leave to discuss this development, Penguin storms the hall with a shout of "You didn't invite me, so I crashed!" and tries to take Max's beloved son, Chip. Max successfully pleads with Penguin to take him instead. Batman attacks Penguin's Red Triangle Circus goons and puts a stop to the kidnappings. Penguin then dispatches an army of Missile-armed Penguins to completely annihilate Gotham. Batman manages to jam the birds' control signals and turn them around. The Dark Knight then tracks the villain down through the sewers.
nowing that Batman is closing in on him and after seeing the rest of the Circus Gang flee, the villain rushes over to his Duck Mobile, grabs one of his umbrellas along the way and drives to the surface, Batman follows him by flying up to the surface going straight through the walls at the top and destroying the vehicle. Batman gets out and surveys the wreckage, but the Penguin pounces on him and they begin to fight with the villain unsheathing a sharp blade from the tip of his umbrella. The Dark Knight responds by taking out a remote control from his utility belt, which causes all the Penguins to appear in the zoo.
The Penguin is furious and viciously swipes his umbrella at Batman, however he breaks the blade when he accidentally hits the duck wreckage, but he manages to knock the control out of Batman's hand.
Grinning with triumph he picks it up and presses the glowing red button which causes the Penguins to fire their missiles. A huge flock of Bats suddenly surround the villain and he falls through the main glass window of his lair into the water below. Meanwhile the Penguins continue to fire the missiles destroying the outside of the Penguin's lair and everything around it including killing the remaining members of the Red Triangle gang.
Following the dramatic final confrontation between Batman, Catwoman and Shreck, culminating in Catwoman killing Shreck with a damaged stun gun and a high-powered electric cable, the now-unmasked Batman is left to confront a gravely injured Penguin emerging from the water, ready to kill him. Although heavily bleeding from his nose and mouth, and horribly weakened by the impact of the fall, The Penguin draws an umbrella from his collection, only to find it's a harmless toy, and proceeds to drop it. Complaining of the heat, Penguin mentions to Batman that he "will murder him momentarily", just as soon as he "can get a cold drink of Iced water", which ultimately turn out to be his last words. He then collapses to the concrete and dies from the poisoning, as well as his injuries. At that moment, six Emperor Penguins emerge from the shadows and solemnly drag his remains back into the water. As a result, the Penguin slowly sinks to his final resting place in a cloud of his own blood.