|“||I am entropy. I am death. I am... Darkseid.||„|
|~ Darkseid after arriving on Earth|
Uxas, also known as Darkseid, is the overall main antagonist of the entire DC Animated Movie Universe; serving as the main antagonist of the 2014 animated film, Justice League: War, and the overarching antagonist of the 2018 film The Death of Superman, and its 2019 sequel, Reign of the Supermen. He is a "New God" and the leader of Apokilops.
Justice League: War
On the desolate world Apokolips, Darkseid slouches in his throne, while his forces invade other alien worlds, capturing the inhabitants and using Apokoliptian technology to painfully mutate and transform them into more Parademons to invade. Upon learning of Earth, Darkseid orders Desaad to "let the invasion begin". Several Parademons scouts are already present and active on Earth, kidnapping people. Batman and Green Lantern meet after running afoul of one who sets up a Mother Box in the sewers. As more Parademons began attacking across the world, more superheroes, including Superman, Wonder Woman, and Shazam, take notice and began to repel them.
Soon, the several Mother Boxes activate, opening up several Boom Tube portals throughout the world, unleashing thousands of more Parademons. Eventually, combined underwater portals bring forth an imposing fortress from beneath the sea. Victor Stone, son of scientist Silas Stone, who was examining a Mother Box, is gravely injured when the Box he's holding activates, painfully fusing the tech within into him. However, with the use of a medical bed, that the Apokoliptian biotech merges the medical bed onto Victor, transforming him into Cyborg. With the information from the Mother Box uploaded into his brain, Victor learns of Darkseid and his schemes. While the superheroes are busy fighting off the Parademon hordes, Cyborg arrives to assist them. Informing them of the mastermind of the invasion, Darkseid himself emerges from the fortress in the sea and begins levitating towards them.
Although fighter jets arrive and fire missiles at him, he is completely unaffected and swiftly blows them up with Omega Beams. Addressing the heroes of who is, Green Lantern attempts to attack him, only to be immediately punched into a wall by the dark lord. Shazam tries next, blasting him with lightning, only to be taken out by an Omega Beam.
The Death of Superman
Sometime before Doomsday's creation, Darkseid's eyes had fully regenerated and he decided to employ strategic warfare against the Justice League rather than directly attacking them like last time. While he has created Doomsday and indoctrinated the beast into despising Superman before unleashing him on earth inside an asteroid projected onto earth via a Boom-Tube. Doomsday's asteroid shell accidentally collided with the Excalibur space shuttle and as a result Hank Henshaw, Terri Henshaw and the rest of their crew were killed.
Reign of the Supermen
Taking an interest in Hank Henshaw and his disappointment for Superman's failure in saving him and his wife, Darkseid used his power to bring Henshaw back to life before transferring his essence into a Cyborg body and deployed him to earth under the guise of a false savior who was meant to deceive the people and even the Justice League into a false sense of security by making them believe he is their new Superman and protector.
However, Darkseid has managed to help Henshaw by staging an attack on Earth which ended up with the Justice League being teleported to an unknown and hostile distant region of space. When Lex Luthor and Lois Lane intercepted a communication link between Cyborg Superman and Darkseid, they discovered that Darkseid believes he has already won and decided to patiently wait to casually invade because this time the Justice League have been disposed of.
When Darkseid finally realized that Superman has survived from his encounter with Doomsday, a surprised, yet ecstatic Darkseid immediately ordered Henshaw to open a Boom-Tube so that Darkseid may personally kill the Man of Steel. After Henshaw state that killing Superman is his desire, Darkseid used his power to force Henshaw to open a Boom-Tube. However, due to Lois Lane's manipulation and mockery of Henshaw's desire to kill Superman, Henshaw ripped out the implant in his head and closed the Boom-Tube, angering Darkseid.
- Shazam refers to Darkseid as "Blackheart the Deatheater" while referencing World of Warcraft in the same breath.