Guest Stars Bruce Greenwood voices Batman Zehra Fazal voices Violet Harper / Halo Troy Baker voices Brion Markov / Geo Force Grey DeLisle Griffin voices Helga Jace Jason Spisak voices Forager / Fred Bugg Alyson Stoner voices Barbara Gordon / Oracle Stephanie Lemelin voices Computer Maggie Q voices Diana Prince / Wonder Woman Nick Chinlund voices Sportsmaster / Crusher Crock Denise Boutte voices Raquel Ervin / Rocket James Arnold Taylor voices Barry Allen / Flash Cameron Bowen voices Robin / Tim Drake Kelly Hu voices Cheshire / Jade Nguyen Jeff Bennett voices Casey Kleeba Khary Payton voices Brick Britt Baron voices Livewire / Leslie Willis Mae Whitman voices Spoiler Kelly Stables voices Arrowette Jeff Bennett voices Abra Kadabra Dwight Schultz voices Mad Hatter Joel Swetow voices Shade Daniela Bobadilla voices Mist Chad Lowe voices Billy Batson / Shazam Nolan North voices Clayface Vic Chao voices Doctor Moon