Role in Family Guy

Stewie is a one-year-old with a very sophisticated psyche. He reached his first birthday in the season 1 episode "Chitty Chitty Death Bang", and has remained the same age ever since. His nature and mannerisms are juxtaposed with typical childlike interests and actions. While highly literate and able to cite pop culture references that date much further back than his age would let on, he is also entranced by Raffi and the Teletubbies. Stewie succumbs to other weaknesses of children his age – he believes Peter has truly disappeared in a game of Peek-a-Boo, talks to his teddy bear (Rupert) as if he were alive, is overcome with laughter when Lois blows on his stomach,[6] and has no idea how to use the toilet. MacFarlane has stated that Stewie is meant to represent the general helplessness of an infant through the eyes of an adult. Per cartoon physics, his ability to move objects of greater weight than himself is not surprising to other characters, nor is his ability to retrieve firearms from hammerspace.