Stewart Gilligan Griffin is eternally young, but his specific age remains a mystery. It's unknown
how old Stewie became on this planet. The infant persona from the animated television show "Family Guy"
is age-defying. His number of years is yet revealed.
Stewie, the clever little troublemaker, is keeping his age a secret from the world. Speculation is rampant as to his actual age. Is he ancient beyond measure? Or is he a recent arrival? The answer is known only to Stewie! This enigmatic character continues to mesmerize fans with his hidden age and perpetually youthful visage.