Stuart Allan as Damian Wayne / Robin (voice)

Jake T. Austin as Jaime Reyes / Blue Beetle (voice)

Taissa Farmiga as Rachel Roth / Raven (voice)

Christina Ricci as Terra (voice)

Brandon Soo Hoo as Garfield Logan / Beast Boy (voice)

Kari Wahlgren as Koriand'r / Starfire (voice)

Miguel Ferrer as Deathstroke (voice)

Sean Maher as Dick Grayson / Nightwing (voice)

Gregg Henry as Brother Blood (voice)

Kevin Smith as Kevin Smith (voice)

David Zayas as Alberto Reyes (voice)

Crispin Freeman as Roy Harper / Speedy (voice)