Night Ninja is a character from the animated children's television series PJ Masks. He is known for his stealthy abilities and often serves as an antagonist to the main characters, Catboy, Owlette, and Gekko. Night Ninja wears a dark costume and uses various gadgets to carry out his mischievous plans. In the show, Night Ninja leads a group of villains called the Ninja Nightmares. His primary goal is to outsmart the PJ Masks and steal their powers. Despite his villainous nature, he often provides valuable lessons about teamwork and friendship as the heroes work together to overcome his challenges.