Paradooms are genetically engineered soldiers that are created from Parademons and Doomsday. They’re only loyal to Darkseid and make for much more dangerous and powerful versions of the standard Parademons. Any group of them would be able to physically overwhelm any superhero. They’ve killed countless people, superheroes, and super villains. They tend to kill their victims by either breaking the neck, tearing them apart, or ganging up on one and eating them alive.
This is the only current appearance of the Paradooms. They’re first seen when the Justice League first arrived on Apokolips where they’re ambushed. They proceeded to slaughter the League, eating Green Lantern alive, burning Martian Manhunter, ripping Hawkman's wings off, tearing Mera's face off, ripping off Shazam's right leg and slashing his face, pulling off Wonder Woman's left arm, and eating Zatanna alive. When they’re sent to Earth, they decimated the Teen Titans, impaling Bumblebee, beating Blue Beetle to death, tearing Starfire in half, stabbing Nightwing through the chest, and killing Kid Flash, Speedy, Wonder Girl and Beast Boy in his tiger form. They were kept on Apokolips as reserve guards till the coordinated attack on Earth's Planet Reapers. Throughout the rest of the movie, they kill Swamp Thing, Batwoman, Batwing and Steel, eating Batgirl alive, vaporizing Black Orchid, snapping Superboy's neck, finishing off Shazam, eating Bane alive, tearing Black Manta in half, and impaling Lex Luthor. In the end, they’re all sent to Apokolips where Cyborg sacrifices himself to send everyone there to "nowhere" via boom tube.
- Due to their physiology, they’re vulnerable to Kryptonite, and therefore the Suicide Squad was able to take out a great amount of Paradooms by infusing their respective signature weapons with Kryptonite.
- Lois stated that the Paradooms were augmented with Superman's DNA like Doomsday was. It’s possible that due to Desaad holding him in his laboratory in Justice League: War, he might have taken some of Superman's DNA.
- The idea of Parademons with Superman's abilities was seen in Injustice 2 in Darkseid's ending.