The League are forced to battle both Darkseid and Brainiac, while Wonder Woman and Batman seek the aid of Orion, son of Darkseid.
| Name | Type | Role | |
|---|---|---|---|
| Rich Fogel | Writer | ||
| Bruce Timm | Writer | ||
| Rob Paulsen | Guest Star | ||
| Michael Ironside | Guest Star | ||
| Tara Strong | Guest Star | ||
| Corey Burton | Guest Star | ||
| Ron Perlman | Guest Star | ||
| Mitchell Ryan | Guest Star | ||
| Butch Lukic | Director |