Guest Stars Zehra Fazal voices Violet Harper / Halo Troy Baker voices Brion Markov / Geo Force Grey DeLisle Griffin voices Helga Jace Greg Cipes voices Beast Boy / Garfield Logan Mark Rolston voices Lex Luthor Crispin Freeman voices Gregor Markov Steve Blum voices Henchy Nolan North voices Frederick DeLamb / Baron Bedlam Masasa Moyo voices Cat Grant Grey DeLisle Griffin voices Troia Steve Blum voices Count Vertigo Troy Baker voices Simon Ecks Yuri Lowenthal voices Zviad Baazovi Steve Blum voices Wilhelm Peters Stephanie Lemelin voices Catherine Cobert Yuri Lowenthal voices Garth Mark Rolston voices Sumaan Harjavti Crispin Freeman voices Kaizen Gamorra