Ultimate Justice (Ultimates + Justice League)
Doc Tomorrow aka Hulk-El (Superman + Hulk)
An alien scientist who was performing experiments with sun radiation and accidently turns him into a being who can absorb sunlight and turn it into incredible power.
American Knightmare aka Steve Wayne (Batman + Captain America)
After his parents are murdered in a terrorist act, Steve volunteers in an army experiment that turns him into a super soldier but at the cost of a piece of his sanity which leads him creating his own War on Terror.
Thiana The Divine Warrior (Wonder Woman + Thor)
The child of Zeus and a Valkyrie who was raised by the all female warriors. Wields a magical hammer and lasso, and rides an invisible Pegasus, to combat crimes against equality.
Iron Speed aka Barry Stark (Iron Man + Flash)
After a dream of the Speed Force a wealthy inventor creates a suit of armor that can manipulate kinectic energy and go beyond the speed of any object which allows him to reach the speed force but puts pressure on his heart.
Atomic Ant aka Ray Pym (Ray Palmer + Ant-Man)
Atomic Wasp aka Janet Choi (Ryan Choi + Ultimate Janet Van Dyne)
Black Vixen aka Shuri McCabe (Vixen + Black Panther)
Masters of DOOM (Masters of Evil + Legion of Doom):
Doom Force aka Eobard Von Doom (Dr. Doom + Reverse Flash)
Madame Poison aka Ophelia Isley (Viper/Madame HYDRA + Poison Ivy)
Circe The Enchantress (Amora + Circe)
Grundy The Executioner aka Skurge Grundy (Solomon Grundy + Skurge)
Killa Gorilla aka M'Baku Grodd (Man-Ape + Gorilla Grodd)
Giant Orphan aka Calvin Cain (Mister Hyde + David Cain)
Super Adaptamazo (Super Adaptoid + Amazo)
Green Marvel Corps:
Green Marvel aka Alcott Mar-Vell (Alan Scott + Captain Mar-Vell)
Green Bird aka Carol Jordan (Hal Jordan + Carol Danvers/Warbird)
Green Spectrum aka John Rambeau (John Stewart + Monica Rambeau)
She-Green aka Sharon Gardner (Guy Gardner + Sharon Ventura/She-Thing)
Miss Green aka Kylie Khan (Kyle Rayner + Kamala Khan)
New Titans (New Avengers + Titans)
Winter Knight aka Dick Barnes (Winter Soldier + Nightwing)
Child assassin turned Knightmare's sidekick
Cyber Spider aka Victor Parker (Cyborg + Spider-Man)
After losing his ability to move after a radioactive spider bite Victor has some of his body parts replaced with robotic parts that makes him move like a spider.
She-Power aka Shulk-El (She-Hulk + Power Girl)
Doc Tomorrow's cousin who gained her powers from a blood transfusion