Frederick Gallagher (born November 15, 1968) is an American illustrator and web cartoonist. He is best known as the artist, co-creator, and now full owner of Megatokyo. He also goes by the name of Piro, the main character of Megatokyo, whom he has stated is an idealized version of himself when he was in college. He took this name from the name of the cat in the visual novel Kanon. Gallagher lives with his wife and son in Ann Arbor, Michigan.