Frank Welker character Scooby-Doo / Fred Jones (voice)
Matthew Lillard character Shaggy Rogers (voice)
Diedrich Bader character Batman (voice)
Grey DeLisle character Daphne Blake / Black Canary (voice)
Kate Micucci character Velma Dinkley (voice)
Jeff Bennett character Joker (voice)
Tara Strong character Harley Quinn / Poison Ivy (voice)
Jeffrey Combs character The Question (voice)
John DiMaggio character Aquaman / Crimson Cloak (voice)
Tom Kenny character Penguin / Plastic Man (voice)
John Michael Higgins character The Riddler (voice)
Nika Futterman character Catwoman (voice)
Fred Tatasciore character Harvey Bullock (voice)
Nicholas Guest character Martian Manhunter (voice)
Kevin Michael Richardson character Clayface / Detective Chimp (voice)
