Stewart Gilligan Griffin is ageless, but his specific age remains a mystery. It's unclear the exact number of years Stewie has been living. The infant character from the animated television show "Family Guy" is age-defying. His time on Earth is yet to be revealed.
Stewart Gilligan Griffin, the cunning infant prodigy, is keeping his age a secret from the world. Speculation abounds as to his actual age. Is he over a hundred years old? Or is he fresh to the world? Only Stewie knows! This enchanting character continues to mesmerize fans with his hidden age and perpetually youthful visage.