Stewart Gilligan "Stewie" Griffin is a fictional character in the animated series Family Guy voiced by Seth MacFarlane. Previously obsessed with world domination and matricide, Stewie is the youngest child of Peter and Lois Griffin. His older siblings are Chris and Meg.
Though he was originally an evil child-genius bent on world domination, the writers in more recent episodes usually ignore that aspect of his personality, instead focusing on a more flamboyant character. He retained an antagonistic role in the show, especially toward Brian in episodes like "Three Kings" and "Lois Kills Stewie". Stewie is considered to be the show's breakout character.[4] Wizard magazine rated him the 95th greatest villain of all time.[5]