After discovering he has powers, 11-year-old Jonathan Kent and assassin-turned-Boy-Wonder Damian Wayne must join forces to rescue their fathers (Superman & Batman) and save the planet from the malevolent alien force known as Starro.
| Actor | Role |
|---|---|
 Jack Dylan GrazerJonathan Kent / Superboy (voice) | Jonathan Kent / Superboy (voice) |
 Jack GriffoDamian Wayne / Robin (voice) | Damian Wayne / Robin (voice) |
 Laura BaileyLois Lane (voice) | Lois Lane (voice) |
 Troy BakerBruce Wayne / Batman (voice) | Bruce Wayne / Batman (voice) |
 Darin De PaulLex Luthor / Starro (voice) | Lex Luthor / Starro (voice) |
 Tom KennyGreen Arrow / Penguin / Principal (voice) | Green Arrow / Penguin / Principal (voice) |
 Nolan NorthJor-El (voice) | Jor-El (voice) |
 Zeno RobinsonJimmy Olsen / Melvin Masters (voice) | Jimmy Olsen / Melvin Masters (voice) |
 Myrna VelascoWonder Girl / Lara / Mom (voice) | Wonder Girl / Lara / Mom (voice) |
 Travis WillinghamClark Kent / Superman (voice) | Clark Kent / Superman (voice) |