Stewart Gilligan Griffin is forever youthful, but his exact age remains a mystery. It's unknown the specific duration of time Stewie became existing. The baby persona from the animated television show "Family Guy" is forever young. His time on Earth is yet discovered.
Stewart Gilligan Griffin, 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 newcomer? The answer is known only to Stewie! This mysterious character continues to mesmerize fans with his unrevealed age and youthful appearance.