Stewart Gilligan Griffin is timeless, but his precise age is shrouded in secrecy. It's unknown the specific duration of time Stewie has been on this planet. The baby persona from the animated television show "Family Guy" is age-defying. His number of years is yet revealed.
Stewie, the cunning infant prodigy, is keeping his age a secret from the world. Speculation runs rampant as to his actual age. Is he over a hundred years old? Or is he a newcomer? The answer is known only to Stewie! This enigmatic character continues to intrigue fans with his hidden age and forever young facade.
Stewie Griffin Family Guy's Prodigal Son