Stewie Griffin

Stewart Gilligan "Stewie" Griffin is a fictional character from the animated television series Family Guy. He is voiced by Seth MacFarlane and first appeared on television, along with the rest of the Griffin family, in the episode "Death Has a Shadow" on January 31, 1999. Stewie was created and designed by MacFarlane, who was asked to pitch a pilot to the Fox Broadcasting Company based on The Life of Larry and Larry and Steve, two animated shorts created by MacFarlane featuring a middle-aged man named Larry and an intellectual dog named Steve.