 | Matt Bomer als Clark Kent / Superman (voice) |
 | John Noble als Brainiac (voice) |
 | Stana Katic als Lois Lane (voice) |
 | Molly C. Quinn als Kara Zor-El / Supergirl (voice) |
 | Diedrich Bader als Steve Lombard (voice) |
 | Jason Beghe als Terrorist Leader (voice) |
 | Frances Conroy als Ma Kent (voice) |
 | Melissa Disney als Thara (voice) |
 | Alexander Gould als Jimmy Olsen (voice) |
 | Sirena Irwin als Alura (voice) |
 | Will Yun Lee als Parasoldier Leader (voice) |
 | Andrea Romano als News Anchor #2 / Superman's Ship (voice) |
 | Stephen Root als Zor-El (voice) |
 | Wade Williams als Perry White (voice) |
 | Michael-Leon Wooley als Ron Troupe (voice) |
 | Ian James Corlett als Kryptonian #1 (voice) |
| Kevin Kliesch | Original Music Composer |
| Bob Goodman | Script |
| Geoff Johns | Original Story |
| Meredith Layne | Casting |
| Robert Hargreaves | Sound Designer |
| Christopher D. Lozinski | Editor |
| Sam Register | Executive Producer |
| Robert Hargreaves | Sound Editor |
| Andrea Romano | Production Manager |
| Cory Gustke | Production Manager |
| James Tucker | Executive Producer |
| James Tucker | Director |
| Bob Goodman | Writer |
| Ok Kil Lee | Line Producer |
| Alan Burnett | Co-Producer |
| Michael Macasero | Associate Producer |
| Toshiyuki Hiruma | Line Producer |
