Michael John Kricfalusi (; born September 9, 1955), known professionally as John K., is a Canadian illustrator, blogger, voice actor and former animator. He is the creator of the animated television series The Ren & Stimpy Show, which was highly influential on televised animation during the 1990s. From 1989 to 1992, he was heavily involved with the first two seasons of the show in virtually every aspect of its production, including providing the voice of Ren Höek and other characters.