Cartoon Network & WB have announced ThunderCats Roar: 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. Bursting with over-the-top action and razor-sharp comedy,ThunderCats Roar boasts fresh and vibrant character designs along