Stewart Gilligan Griffin is forever youthful, but his exact age remains a mystery. It's unclear the specific duration of time Stewie entered existing. The infant persona from the animated television show "Family Guy" is immortal. His time on Earth is yet revealed.
Stewie, the clever little troublemaker, is keeping his age a secret from the world. Speculation is rampant as to the length of time he has existed. Is he over a hundred years old? Or is he a newcomer? The answer is known only to Stewie! This mysterious character continues to captivate fans with his unrevealed age and forever young facade.