Guest Stars Nhut Le as Judomaster Elizabeth Ludlow as Keeya Lochlyn Munro as Larry Fitzgibbon Annie Chang as Sophie Song Christopher Heyerdahl as Captain Locke Co Starring Dee Bradley Baker voices Eagly Zak Santiago as Prison Guard Rochelle Greenwood as Peggy Kevin O'Grady as Johnson Bzhaun Rhoden as Young Man Neil Webb as Cool Steve Liam Hughes as Young Keith Quinn Bennett as Young Chris Lissa Neptuno as Dr. Alandy Troy Anthony Young as Terrified Man Cynthia Oroz Guzman as Nurse Uncredited Viola Davis as Amanda Waller Jason Momoa as Arthur Curry / Aquaman Ezra Miller as Barry Allen / The Flash Brad Abramenko as Clark Kent / Kal-El / Superman
