Kate Boutilier is an American screenwriter and producer whose credits include the animated television series Rugrats, The Wild Thornberrys, All Grown Up! and Holly Hobbie & Friends, and the feature films The Wild Thornberrys Movie, Rugrats Go Wild, and Rugrats in Paris. She co-created and produced the series Poppy Cat and The Mr. Men Show, and co-showran the Rugrats reboot.