Kaley Cuoco Harley Quinn Voice, Executive Producer Lake Bell Poison Ivy Voice Alan Tudyk Joker, Clayface Voice Jim Rash Riddler Voice Tony Hale Dr. Psycho, Felix Faust Voice Ron Funches King Shark Voice Diedrich Bader Batman Voice James Adomian Bane Voice Jason Alexander Sy Borgman Voice Briana Cuoco Batgirl Voice Andrew Daly Two Face Voice Giancarlo Esposito Lex Luthor Voice Rahul Kohli Scarecrow Voice Phil LaMarr Jason Praxs, Black Manta Voice Vanessa Marshall Wonder Woman, Giganta Voice Tisha Campbell-Martin Tawny Young Voice Christopher Meloni Commissioner Gordon Voice Matt Oberg Kite Man, KGBeast Voice Will Sasso Maxie Zeus Voice J.B. Smoove Frank the Plant Voice Wanda Sykes Queen of Fables Voice Justin Halpern Executive Producer Patrick Schumacker Executive Producer Sam Register Executive Producer Dean Lorey Executive Producer Adam Stein Writer Christina Sotta Director