Sarah C. Andersen is an American cartoonist and illustrator born in Portland, Oregon. She is best known for creating the webcomics Sarah's Scribbles and Fangs, which have built a significant following online. Andersen has collaborated with various artists and writers throughout her career, including Andy Weir. Based in Portland, Oregon, she continues to work in cartooning and illustration. In recent years, Andersen has become a vocal critic of text-to-image models and generative AI illustrations, speaking publicly about her concerns regarding these technologies.