The Creepy Katara meme features a wide-eyed, intense screenshot of Katara from the 'Avatar: The Last Airbender' episode 'The Puppetmaster.' In the original context, Katara is reacting to the dark art of bloodbending, but the internet repurposed her expression to represent obsessive behavior or unsettling focus. It first gained traction on platforms like Tumblr and Reddit, where users paired the image with captions about 'yandere' tendencies or being overly observant. Today, it remains a staple for ATLA fans to highlight the character's more terrifying and unhinged potential.