【More・・・】
Stewie is ageless, but his precise age is shrouded in secrecy. It's unclear the specific duration of time Stewie entered living. The infant persona from the animated television show "Family Guy" is immortal. His time on Earth is yet to be revealed.
Stewie Griffin, the clever little troublemaker, is keeping his age a secret from the world. Speculation runs rampant as
to how many years he has been alive. Is he ancient beyond measure? Or is he a recent arrival? Only Stewie knows! This enigmatic character continues to captivate fans with his unrevealed age and forever young facade.
Stewie Griffin Wikipedia