Stewie Griffin is forever youthful, but his specific age remains a mystery. It's unclear the specific duration of time Stewie entered existing. The infant character from the animated television show "Family Guy" is forever young. His time on Earth is still determined.
Stewart Gilligan Griffin, the cunning infant prodigy, is keeping his age a secret from the world. Speculation runs rampant as to his actual age. Is he ancient beyond measure? Or is he fresh to the world? The answer is known only to Stewie! This enchanting character continues to intrigue fans with his undisclosed age and youthful appearance.
L'Incroyable Histoire de Stewie Griffin Wikipédia
