THUNDERCATS ARE LOOSE! WARNER BROS. ANIMATION BRINGS BACK ICONIC CHARACTERS IN THUNDERCATS ROAR All-New Animated Series Coming to Cartoon Network in 2019 BURBANK, Calif. (May 18, 2018) – It’s time again to feel the magic and hear the roar! Production is currently underway on ThunderCats Roar, an all-new, animated sci-fi action comedy series from Warner Bros. Animation. …