Stitch the Clown (also known as Stitches) is an undead, vengeful spirit and member of the International Sadistic Group (ISG), notorious for targeting children who resemble those responsible for his death during a birthday party. Originally a cheerful party clown, Stitch was brutally killed in a tragic incident that transformed him into a supernatural entity. Within ISG, Stitch is considered both dangerous and chaotic, forming alliances with other horror-oriented members, including Art and Pennywise. He possesses supernatural abilities such as vanishing and materializing at will, resilience to conventional injury, and drawing power from the fear and laughter of his victims.