Cathon was born in Québec but moved to Montreal in 2010 to do her BFA at Université du Québec à Montréal. During university, Cathon painted a lot but drawing has always been her passion. She taught herself to draw at a young age by copying pages from her favorite manga books. She developed a quirky, memorable style, which she uses to craft books that are little closed universes that readers can dive into and forget about everything else. When not drawing, Cathon enjoys the outdoors and spending time with her boyfriend and their chubby cat, Virgule.