 | Meg Donnelly als Supergirl / Kara (voice) |
 | Harry Shum Jr. als Brainiac 5 (voice) |
 | Jensen Ackles als Batman (voice) |
 | Gideon Adlon als Phantom Girl (voice) |
 | Matt Bomer als The Flash (voice) |
 | Darren Criss als Superman (voice) |
 | Robbie Daymond als TimberWolf / Brainiac 4 (voice) |
 | Darin De Paul als Brainiac / Solomon Grundy (voice) |
 | Ben Diskin als Arms Fall Off Boy / Brainiac 2 (voice) |
 | Victoria Grace als Shadow Lass (voice) |
 | Jennifer Hale als Alura (voice) |
 | Cynthia Hamidi als Dawnstar (voice) |
 | Ely Henry als Bouncing Boy (voice) |
 | Daisy Lightfoot als Triplicate Girl (voice) |
 | Eric Lopez als Cosmic Boy / Chemical King (voice) |
 | Yuri Lowenthal als Mon El (voice) |
 | Zeno Robinson als Invisible Kid / Brainiac 3 (voice) |
| Butch Lukic | Supervising Producer |
| Jeff Wamester | Director |
| Josie Campbell | Writer |
| James Krieg | Producer |
| Kimberly S. Moreau | Producer |
| Sam Register | Executive Producer |
| Wes Gleason | Casting |
| Bruce King | Editor |
| Joe Shuster | Characters |
| Jerry Siegel | Characters |
| Angela O'Sullivan | Line Producer |
| Marlene Corpuz | Production Manager |
| Kevin Riepl | Original Music Composer |
| Bob Kane | Characters |
| Bill Finger | Characters |
| Paul Levitz | Characters |
| Mike Grell | Characters |
| Lauren D. Sanchez | Assistant Production Manager |
| Alicia Heraper | Assistant Production Manager |
| Jacqueline Howard | Assistant Production Manager |
| Monique Mosbe | Assistant Production Manager |
| Jon Suzuki | Character Designer |
| Dusty Abell | Character Designer |
| Tina Duong | Character Designer |
| Otto Schmidt | Character Designer |
| Art Lee | Prop Designer |
| Brian Uchida | Prop Designer |
| Robert Haverland | Background Designer |
| Augusto Barranco | Background Designer |
| Rodel Gravo | Background Designer |
| Tec Manalac | Background Designer |
| John Paik | Background Designer |
| Jonard Soriano | Background Designer |
| Kim Bowen | Color Designer |
| Craig Cuqro | Color Designer |
| Christina Long | Color Designer |
| Aluir Amancio | Storyboard Artist |
| Jessica Cuffe | Storyboard Artist |
| Elsa Garagarza | Storyboard Artist |
| Kaela Lash | Storyboard Artist |
| David Maximo | Storyboard Artist |
| Ifesinachi Orjiekwe | Storyboard Artist |
| Chris Palmer | Storyboard Artist |
| Jose Andres Velasco | Storyboard Artist |
| Matthew Girardi | Art Direction |
| Brenna Kraus | Graphic Designer |
| Brenna Kraus | Title Designer |
| Greg Emerson | Other |
| Kip Brown | Post Producer |
| Rebecca Sands Coutts | Post-Production Manager |
| Marissa Llano | Post-Production Manager |
| Lisa Hallbauer | Other |
| Djochoua Belovarski | Production Manager |
| Jeff O. Collins | Other |
| Wilson Martinez | Other |
| Mark A. Keatts | Supervising Dialogue Editor |
| Mark A. Keatts | ADR Editor |
| Kelly Ann Foley | Dialogue Editor |
| Kelly Ann Foley | ADR Editor |
| Patrick J. Foley | Dialogue Editor |
| Patrick J. Foley | ADR Editor |
| Michael Garcia | Dialogue Editor |
| Michael Garcia | ADR Editor |
| Fred Salinas | Dialogue Editor |
| Fred Salinas | ADR Editor |
| Darren Griffiths | Online Editor |
| Aisha Clarke | Administration |
| Agnes Kim | Casting |
| Sarah Noonan | Casting |
| Liz Carroll | Administration |
| Yadira Davis | Production Accountant |
| Athena Wingate | Production Accountant |
| Bobbie Page | Production Supervisor |
| Ed Adams | Production Manager |
| Peter Girardi | Executive In Charge Of Production |
