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 James Arnold Taylor voices G. Gordon Godfrey Stephanie Lemelin voices Computer Zeno Robinson voices Victor Stone / Cyborg Nolan North voices Superman / Clark Kent Deborah Strang voices Gretchen Goode / Granny Goodness Maggie Q voices Diana Prince / Wonder Woman Zehra Fazal voices Lian Nguyen-Harper Troy Baker voices Green Lantern / Guy Gardner Grey DeLisle Griffin voices Troia Stephanie Lemelin voices Catherine Cobert Grey DeLisle Griffin voices Big Barda Danica McKellar voices Angel O'Day James Arnold Taylor voices Hawkman Mark Rolston voices Hro Talak Zehra Fazal voices Hawkwoman