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Rex Goodwin, sometimes romanized as Rex Godwin, is a major character in Yu-Gi-Oh! 5D's. Goodwin is a former developer from R.R.D., head of Sector Security, the man from the Daedalus Bridge legend and the major antagonist at the end of the Dark Signers arc.
His brother, Roman, entrusted Rex with the mission to use the Signers to someday stop him, as Roman became a Dark Signer. Rex uses his influences to gather the Signers and assist them, but secretly used them in order to become a Dark Signer and absorb the powers of a Signer using Roman's birthmark, hoping to recreate the world as a god.Goodwin managed to make his way to becoming director of New Domino City and Sector Security, as well as leader of a cell within the secret organization known as Yliaster, with Lazar as his all purpose assistant.
Knowing the Dark Signers will return to wage war against the Signers, Goodwin isolates the Satellite from New Domino. Since the original Enerdy Reactor, located in Satellite, is the gateway to the underworld, Satellite is to become the battlefield. Goodwin cleanses New Domino, by sending any criminals or socially inadequate people to Satellite, making New Domino a utopia, while Satellite is flooded with people considered "scum" by many. Goodwin masquerades his beliefs of class and plutocracy with utilitarianism, saying that everyone must work together to maintain the delicate balance between Satellite and New Domino City.
Goodwin continues Enerdy research in New Domino and uses it to power the city. Zigzix leads the project, but must operate under Goodwin's instructions.
Using his influences within the city, Goodwin began to locate the Signers.
He finds the Satellite resident, Jack Atlas, who has a Mark of the Dragon, identifying him as a Signer. Goodwin organizes an escape plan for Jack, promising him that he will live as a Duel King in New Domino. Jack complies, although it meant turning his back on and stealing from his friends. Jack apparently becomes Goodwin's protegé, but is really used for publicity and a tool in Goodwin's plans.Goodwin appears at the premiere of the film Atlas Rising. After assisting at opening event and talking to the people, he tries to leave but is stopped by Angela Raines, who publicly questions him about Jack being from Satellite.
Goodwin and Lazar meet Yusei on a bridge to tell the boy "the truth". Goodwin tells Yusei about the 5000 year old battle between the Signers and Dark Signers, how the Earthbound Immortals got sealed in the Nazca Lines and how the Crimson Dragon divided itself into 5 parts, each sealed in a Mark of the Dragon. When Yusei asks him why the battle has began again Rex tells him about the Zero Reverse and how it unleashed negative energy, which was also emitted from the Nazca Lines and now the Dark Signers plan to use the same Enerdy reactor from the Zero Reverse incident to open the door to the Underworld. In order to stop this, the Signers must defeat the Dark Signers.
Yusei insists on evacuating Satellite before this happens. Goodwin refuses as the people in New Domino will become victims instead. Yusei angrily figures out that this is why Goodwin isolated Satellite. Goodwin tells Yusei he must combine his powers with the other Signers in order to stop the Dark Signers. After Yusei asks who the fifth Signer is, Goodwin says that he is destined to appear eventually. Goodwin arranges for Yusei to be airdropped into Satellite.
Goodwin watches the Duel between Yusei and Kalin.
After Carly Carmine becomes a Dark Signer, Lazar and Goodwin become aware of her presence and watch her duel Sayer on a screen, in which they see the Hummingbird geoglyph appear in the city. They also see Misty Tredwell Duel around the same time and place and observe her Lizard geoglyph appear.
Rex later invites the Signers to his house to give them more information concerning the Signers and Dark Signers. He tells the Signers how they have been brought together by fate, more about the Dark Signer's powers and their use of the Earthbound Immortals. Reluctantly he tells them that a Dark Signer cannot return to their normal self as they are no longer of this world.
After the black fog incident in Satellite, Goodwin arranges for the Signers to return to Satellite to fulfill their mission. Before the Signers leave Yusei asks Goodwin to promise to finish Daedalus Bridge, once the Dark Signers threat has been eliminated, which Goodwin accepts.Rex meets up with Roman and engages in a Duel, using his Duel Disk, which folds out of his mechanical arm. Rex loses on purpose, so that he may be reborn as a Dark Signer. He tells Roman that he knows Roman cannot defeat Yusei and if the Dark Signers lose the battle, then another battle would occur in the next thousand years. In his dying words, he tells his brother that he intends to stop the chain of fate by destroying the world using the King of the Netherworld's power and rebuilding it using the Crimson Dragon's power.
After a while Crow Hogan finds him in an old room. Rex informs Crow a little about the past before cutting him off by turning towards a sliding door. Later Rex returns back to New Domino City and back to the Sky Temple to collect Roman's arm.
Goodwin as a Dark Signer.
Later after Akiza fails to seal the final tower before sundown, the Condor Geoglyph appears on the sky. Then the Crimson Dragon appears once again and guides the Signers to Rex Goodwin. As he reveals to them that he has acquired the powers of both Signer and Dark Signer, as Goodwin intends to use the power of the Crimson Dragon along with those of the Wicked God in order to become the Ultimate God. As the Condor mark on his back shows itself, he then removed Roman's preserved arm from the canister and attached it to himself and then declares that a Shadow Turbo Duel will be held within Condor Geoglyph as a ritual to welcome the King of the Netherworld.
Yusei, Jack, and Crow accept the Duel in order to stop the resurrection of the Underworld Ruler. During the Duel he reveals to them about how and why he became a Dark Signer. Shortly after the Duel begins, Goodwin summons forth all the birthmarks together to form the Mark of the Dragon on his chest. He also reveals the strongest of the Earthbound Immortals, "Wiraqocha Rasca". He also reveals that he was the stranger from the Daedalus Bridge legend.
Roman and Rex before passing on to the afterlife.
Ultimately, Rex loses to Yusei with his Earthbound Immortal destroyed by "Majestic Star Dragon" and the King of the Netherworld destroyed by the Crimson Dragon. With their defeat the Dark Signers were revived as their old selves, but Rex and Roman remained absent.
Rex is the last Dark Signer to fall.
Sometime after the final battle, the Daedalus Bridge is completed as a far more modern bridge.
