- Alexander Polinsky - Chameleon Boy (voice)
- Alexander Polinsky - Chlorophyll Kid (voice) / Matter-Eater Lad (voice)
- Phil Morris - Imperiex (voice)
- Amy Hill - K3NT (voice)
- Greg Ellis - Drax (voice)
- Keith Ferguson - Karate Kid (voice) / Nemesis Kid (voice)
- Billy West - Dispatcher (voice) / Guide-Bot (voice)
- Corey Burton - Brainiac (voice)
- Tara Platt - Dream Girl (voice)
- Wil Wheaton - Cosmic Boy (voice)
- Taylor Negron - Starfinger (voice)
- Lauren Tom - Zyx (voice)
- Victor Raider-Wexler - Dr. Neerg (voice)
- David Sobolov - The Persuader (voice) / Lord Reesmu (voice)
- Dave Wittenberg - Ferro Lad (voice)
- Dan Castellaneta - Boris (voice) / Captain Howdy (voice) / Coluans (voice)
- Jim Ward - Mordru (voice)
- Madison Davenport - Abel (voice)
- Sab Shimono - K3NT (voice)
- Dorian Harewood - Dr. Mar Londo (voice)
- Bumper Robinson - Star Boy (voice)
- April Winchell - Winema Wazzo (voice)
- James Arnold Taylor - Lightning Lord (voice)
- James Arnold Taylor - Porcupine Pete (voice) / Color Kid (voice)
- James Arnold Taylor - Mekt Ranzz (voice) / Jo Nah (voice)
- Richard McGonagle - Chancellor (voice) / Kandorian #1 (voice)
- Richard McGonagle - High Elder (voice)
- Richard McGonagle - Host (voice)
- Richard McGonagle - High Elder (voice) / Evil Wizard (voice)
- Jennifer Hale - Emerald Empress (voice) / Ma Kent (voice)
- Jennifer Hale - Space Warrior (voice) / Ma Kent (voice)
- Jennifer Hale - Emerald Empress (voice)
- Janice Kawaye - Young Lightning Lord (voice)
- Nika Futterman - Ayla (voice)
- Khary Payton - Tyr (voice)
- Khary Payton - Tyr (voice) / The Hunter (voice)
- Tara Strong - Emerald Empress (voice) / Esper (voice)
- Tara Strong - Alexis (voice)
- Bob Bergen - Young Lightning Lad (voice)
- Lex Lang - Announcer #1 (voice)
- Lex Lang - Grimbor the Chainsman (voice)
- Lex Lang - Grimbor the Chainsman (voice) / R.J. Brande (voice)
- Jefferson Black - Terra-Man (voice)
- David Lodge - Controller (voice) / Tharok (voice)
- David Lodge - Tharok (voice)
- David Lodge - Announcer #2 (voice) / Tharok (voice)
- Harry Lennix - Dr. Mar Londo (voice)
- James Tucker
Greg Ellis hace el papel de Drax (voice).
Dan Castellaneta interpreta a Boris (voice) / Captain Howdy (voice) / Coluans (voice) en la serie.
Wil Wheaton hace el papel de Cosmic Boy (voice).
Yuri Lowenthal interpreta a Superman / Kell-El (voice) en la serie.
Kari Wahlgren hace el papel de Saturn Girl (voice).
Adam Wylie hace el papel de Brainiac 5 (voice).
Andy Milder interpreta a Lightning Lad (voice) en la serie.
Shawn Harrison interpreta a Timber Wolf (voice) en la serie.
Michael Cornacchia interpreta a Bouncing Boy (voice) en la serie.
Alexander Polinsky hace el papel de Chameleon Boy (voice).
Capítulo disponible en las siguientes plataformas:
