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 Nolan North voices Frederick DeLamb / Baron Bedlam Steve Blum voices Henchy Masasa Moyo voices Cat Grant Grey DeLisle Griffin voices Troia Yuri Lowenthal voices Zviad Baazovi Troy Baker voices Simon Ecks Steve Blum voices Count Vertigo Yuri Lowenthal voices Garth Stephanie Lemelin voices Catherine Cobert Steve Blum voices Wilhelm Peters Mark Rolston voices Sumaan Harjavti Crispin Freeman voices Kaizen Gamorra