Kevin Conroy as Batman;

George Newbern as Superman;

Susan Eisenberg as Wonder Woman;

Diane Guerrero as Jessica Cruz / Green Lantern;

Daniela Bobadilla as Miss Martian;

Kevin Michael Richardson as Mr. Terrific, Kilowog (uncredited);

Elyes Gabel as Thomas Kallor / Star Boy;

Tara Strong as Saturn Girl, Harley Quinn (uncredited);

Noel Fisher as Brainiac 5;

Sumalee Montano as Emerald Empress;

Philip Anthony-Rodriguez as Mano;

Peter Jessop as Tharok;

Matthew Yang King as The Persuader;

Bruce Timm as Two-Face;

Tom Kenny as Bloodsport, Salaak (uncredited)