Stewie Griffin

Stewart Gilligan "Stewie" Griffin is an infant. He is the intelligent, flamboyant and eccentric one year old infant of Peter and Lois Griffin. Stewie, equipped with his teddy bear, Rupert and his laser gun, has, on several occasions, almost single handedly taken over the world and he seems to be obsessed with world domination and matricide. He speaks with a British accent.

History
Stewie was sitting next to Mr. Burns in court holding their respective teddy bears (Rupert and Bobo)and when Stewie revealed to Bart he gagged and tortured Bart's enemies in the Simpsons' garage, Sideshow Bob being one of them.